Bolster Armouries ONYX SBR [Violet Edition] Advanced M4 AEG

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Bolster Armouries was founded with one primary mission: To provide Airsofters with a range of RIFs which has been fine-tuned to provide the absolute peak in attainable performance together with breath-taking external quality. Each of our replicas is hand-assembled by some of the most experienced Airsoft gun techs in the industry and is built to an exacting standard.

Conceived with the modern Airsofter in mind, Bolster Armouries RIFs sport some of the finest internal and external upgrades available on the Airsoft market today and are guaranteed to provide unparalleled performance. To underline their dedication to their products, every Bolster Armouries RIF is issued with a dedicated extended warranty and service package, ensuring you get the complete experience the creators intended.

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The ONYX SBR [Violet Edition] is the latest evolution of the Bolster Armouries ONYX platform, intended for those who prefer a short-barreled rifle and want a fully upgraded platform which can outshoot almost anything else out there. The [Violet Edition] boasts the original Bolster Armouries ONYX aesthetic with the distinctive new Bolster Armouries Violet finish on the trigger, HOP-up unit, cylinder head and piston head, subtly signalling its upgraded internals with parts made specifically for Bolster Armouries and not available separately.

As with previous ONYX platform releases, the [Violet Edition] is built with the finest aftermarket parts in the business, with the Krytac Barrett REC7 DI SBR serving as the base platform. Only the external shell, gearbox shell and gears themselves remain; everything else has been stripped away and replaced with proven aftermarket parts assembled with the utmost care by some of the most talented techs in the industry.

All the biggest names, from Laylax Prometheus to Warhead Industries and FPS Softair feature inside and all parts are tuned to perfection, with the Gate TITAN V2 with its newest “Expert” firmware acting as the brain of the platform. Adding to its box of tricks, the TITAN now communicates directly with the ESC module on the Warhead Industries CNC Black Brushless Motor, meaning the Bolster bar is raised further still when it comes to electrical efficiency and rate of fire.

New additions to the Bolster Armouries formula are the EON HOP-up unit, NOVA CNC Trigger and Protector Piston Head from Gate Electronics, finished in Bolster Armouries custom violet anodisation. The “off the shelf” version of these parts previously featured in the ONYX [EON Edition] and performed phenomenally, leading the Bolster tech team to commission these gorgeous CNC aluminium parts with a custom finish, specifically made for Bolster Armouries builds and not available on their own.

Not content with simply tricking out the internals, choice real steel and Airsoft parts have been added on the outside of the ONYX SBR [Violet Edition] in true Bolster Armouries tradition. Up front, the team fitted a PTS Syndicate Griffin Armament M4SD-K suppressor to allow ONYX users to switch quickly between a suppressed and unsuppressed configuration while rocking gorgeous Griffin Armament trademarks and an inimitable grid pattern fluted surface design.

Mounted to the M-LOK handguard, the [Violet Edition] is fitted with the old Bolster favourite, the PTS Syndicate Fortis Shift Grip, a highly adaptable M-LOK mounted grip which can be used in several different ways. The Fortis Shift grip is constructed from CNC 6061-T6 aluminium and has a stylish, skeletonised design which suits the ONYX perfectly.

Widely regarded as the best AR-15 carbine stock available for the vast majority of applications, the legendary Magpul CTR Stock features at the rear, giving you a real steel rifle stock that is practically without equal. The CTR is made in the USA using Magpul’s advanced high density polymer, features the Magpul “Friction Lock” system to eliminate wobble and is fitted with a rubber butt plate for optimal gripping qualities in any weather conditions.

If the mass-produced guns from other manufacturers are the equivalent of a Ford, a Bolster Armouries AEG is a Rolls Royce; crafted with care, to perfection, with the highest quality parts available and a distinctive external look leaving onlookers in no doubt that this is a Bolster Armouries AEG.

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Bolster Armouries ONYX SBR [Violet Edition] Advanced M4 AEG

As with previous ONYX platform releases, the base platform for the ONYX SBR [Violet Edition] is the Krytac Barrett REC7 AEG, widely regarded as having some of the highest quality core external parts available. The only external parts retained from the original REC7 are the outer barrel, receiver, buffer tube, and handguard; everything else has been stripped out to make room for the Bolster Armouries' internal and external style up.

The REC7 parts in the ONYX [Violet Edition] build are constructed from Aluminium and finished with a CNC machining process, resulting in immaculate details and a flawless form. The handguard features a monolithic style 20mm Picatinny rail which meets the receiver rail seamlessly, providing an uninterrupted attachment surface suited for practically any optical sight setup, including combinations of Holographic sights with magnifiers or night vision monoculars.

The REC7 handguard uses the M-LOK negative space attachment interface to keep the weight of the ONYX down to only what is necessary while offering the option to add any M-LOK compatible accessories, from vertical grips to bipods and more. The 9.5-inch handguard has an octagonal profile and provides M-LOK at the 3, 6, and 9 o'clock positions with Picatinny rail along the top.

The smooth edges of the handguard make it a pleasure to hold, unlike many other metallic handguards which require rail covers for comfort. The REC7 handguard was chosen by the Bolster Armouries team for this reason. Having a handguard which requires no additional rail covers or grips to provide a comfortable hold means you can keep the ONYX in its bare-bones configuration if you prefer a simple setup, or deck it out to the nines if the mission requires it.

The REC7 receiver retains the beautiful, authentic, and fully licensed Barrett Firearms trademarks on the left side of the magazine well, reading; BARRETT | FIREARMS MFG INC | MURFREESBORO, TN | REC7 | CAL. MULTI. These markings are precisely engraved and add a touch of realism to the ONYX, with a nod to one of the most well known firearms manufacturers out there.

The ONYX SBR is a perfect replica of the real Barrett REC7, down to every protrusion, surface angle and finish, as one would expect when using a Barrett-licensed AEG shell manufactured by Krytac. The receiver matches the form of a standard AR-15 receiver, with its mock ejection port positioned on the right side of the upper receiver, followed by a mock brass defector and mock forward assist. The right side of the upper receiver features a standard-shaped AR-15 cam pin protrusion, perfectly matching that of the real Barrett REC 7.

The lower receiver is where you will find the controls of the ONYX SBR [Violet Edition], with the fire selector being located just above the pistol grip in a very accessible location; one of the traits the AR-15 platform is known and loved for. The selector switch provides 3 positions; Safe, Semi-automatic, and fully automatic with a 90-degree throw between each mode and is mirrored on either side to allow left and right-handed shooters to operate this essential control intuitively. Each selector position is denoted with an engraved pictogram, following trends in modern firearms development and imitating real Barrett REC7 perfectly.

The magazine release can be found on the right side of the ONYX, on the magazine well, and is protected from accidental drops with a magazine release fence machined as part of the lower receiver. The mag release lies well within reach of the trigger finger of a right-handed user and can be used by left-handed shooters by pressing the release with the support hand thumb. This magazine release is a "drop-free" design, granting additional speed when time is of the essence; whether you are skirmishing or shooting against the clock!

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CERAKOTE Finish - Northern Lights

Cerakote is an advanced, hard-wearing, and corrosion-resistant ceramic coating developed for industries ranging from automotive to firearms and aerospace applications. Cerakote is offered in a wide range of finishes and is generally considered to be superior to anodizing when it comes to providing a custom finish to firearms. This is due in part to the high standards of colour consistency with a Cerakote finish, and that as a part of the process, anodizing creates a brittle and porous oxide layer over the parts, increasing tensile residual stress which can cause the finish to crack.

Cerakote does not affect the fatigue properties of aluminium and its alloys, making it ideal for Bolster Armouries RIFs. Cerakote has been extensively tested and has shown to be capable of exceeding military standards for corrosion resistance by over 40 times when subjected to a salt chamber test, even outlasting the commonly used Nitride finish for the barrels of real rifles.

The Cerakote "Northern Lights" finish is a stunning colour-changing navy blue which transforms into a greenish teal with glistening gold metallics when tilted, providing an extremely eye-catching finish and an absolutely distinctive overall look. This coating has been applied to the outer barrel, buffer tube and mock bolt carrier of the ONYX SBR [Violet Edition], providing a subtle contrast with the Tungsten finish and highlighting the platform’s nature as a unique customised Airsoft gun. Northern Lights is also a near-perfect match for the cyan adjustment dial of the Gate EON HOP-up unit, tying the styling of the [Violet Edition] together for a complete look.

Northern Lights is a part of the Cerakote H series of coatings, which boast excellent wear resistance, chemical and solvent resistance, and superb adhesion. The Northern Lights finish is visible through the ports on the handguard, through the mock ejection port and the draining holes on the Magpul CTR stock, leaving observers in no doubt that this is a Bolster Armouries custom piece.

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PTS Syndicate Ergonomic Enhancements

The Bolster Armouries ONYX SBR [Violet Edition] has been equipped with a host of PTS Syndicate ergonomic enhancements to ensure it handles as well as it shoots.

The pistol grip has been replaced with the advanced EPG Pistol grip, offering a highly supportive design with a curved extension to help you maintain a comfortable hold and protect the web of your hand whilst manipulating the ONYX [Violet Edition]. This Pistol grip is constructed from Dupont Zytel, a high strength, abrasion and impact-resistant thermoplastic polyamide/nylon, aka, the best of the best when it comes to high density polymer.

With comfortable dot texturing on either side and crackle texture on the front strap and backstrap, this grip is the perfect enhancement to ensure an ONYX-wielding player maintains a positive grip on the rifle in any weather condition, even while wearing thick gloves. The EPG follows a very similar profile to the popular Magpul MIAD and MOE grips for real AR-15s, both of which have an excellent reputation for providing a comfortable grip which suits a wide variety of hand shapes and sizes.

This pistol grip is paired with a PTS Syndicate Fortis Shift Grip, a recently designed grip intending to provide the functionality of both a vertical foregrip and an angled foregrip. The Fortis Shift Grip is machined from a single piece of billet 6061-T6 aluminium and is a skeletonised design weighing in at a minuscule 104g whilst availing itself of all the structural advantages of aluminium construction.

The Fortis Shift can be used either with a traditional vertical grip hold, the more modern thumb-break or thumb overbore (also known as "C clamp") grip, or even as a hand stop while retaining the flexibility to switch between grip methods when shooting from unconventional positions in a dynamic skirmishing environment.

The ONYX platform has been equipped with a PTS Radian Raptor-LT charging handle, the latest iteration of the revolutionary Radian Weapons ambidextrous charging handle, now adapted for Airsoft use by PTS Syndicate. The Raptor charging handle allows easy access for both left and right-handed users due to its dual-wing design and functions identically from either side of the rifle.

The Raptor is comprised of a 6000 series aluminium skeleton with a black anodized finish which is over-moulded with PTS' own custom reinforced polymer formula; known for its combination of high strength, low weight, and impressive durability.

The design of the Raptor charging handle allows it to be pulled with a single finger, thumb, or even the palm of your hand due to its serrated grip surfaces on the charging handle "wings" providing positive grip in any situation.

The right side "wing" of the Raptor is slightly longer than the left side in order to clear the mock forward assist button found on the ONYX, allowing smooth operation with no snags for a left-handed user, or a right-hander who uses shoulder-to-shoulder transitions to gain the edge in close quarters. Pulling the charging handle to the rear provides access to the Gate EON CNC aluminium rotary HOP-up unit which is accessible through the mock ejection port on the right side of the ONYX SBR [Violet Edition].

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PTS Griffin M4SD-K Suppressor & PTS Griffin M4SD Flashcomp

To match the modern design aesthetic of the Barrett REC7 body and M-LOK handguard, the PTS Griffin M4SD Flashcomp was chosen as the muzzle device for the Onyx platform, accompanied by the quick detachable PTS Griffin M4SD-K suppressor. The Flashcomp is a hybrid compensator-flash hider design, with a 3 port "birdcage" and a tri-prong configuration at the tip.

The Griffin Armament Flashcomp is the icing on the cake, completing the sleek, yet aggressive design of the Onyx rifle. The Flashcomp features weight-reducing cuts at the tip in each of the three prongs, and an attractive Griffin Armament logo which is flawlessly laser engraved in the centre of the muzzle device.

At the base of the Flashcomp, we can see a familiar looking collar design, matching that of a standard M16A2/M4A1 birdcage flash hider. This section allows the PTS Griffin Armament M4SD-K and many other suppressors with a QD locking mechanism designed for "A2" birdcage compatibility to be added when necessary and removed in seconds.

The M4SD-K suppressor not only ties in with the Bolster Armouries Onyx look but provides the perfect combination of low weight and durability with its machined aluminium fluted surface design. This design was inspired by the fluted barrels present on precision rifles, requiring a heavy barrel profile and significant structural rigidity in concert with reduced weight for improved handling. This fluting takes the form of a grid pattern design and marks out the Griffin Armament M4SD-K from the vast majority of other suppressors with their smooth-sided cylindrical profile.

The M4SD-K suppressor uses the proven Griffin Armament SDQD mounting interface which is widely regarded as one of the fastest and most secure mounting interfaces on the suppressor market, following testing of the real M4SD-K in Afghanistan during Operation Enduring Freedom. With an overall length of just 5.75 inches, the M4SD-K adds very little additional length to the Onyx platform, and its fluted aluminium construction maintains the elegant balance of the rifle by adding minimal extra weight.

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Genuine Magpul CTR Stock

The Magpul CTR stock is widely regarded as the best AR-15 carbine stock available for the vast majority of applications and is designed to be used with AR-15 rifles with a mil-spec buffer tube. This stock has been seen in use with US Army Special Forces, US Navy SEALS, and our own UKSF, the special forces directorate comprising the SAS, SBS, SRR, and SFSG (1 PARA).

The CTR is an "A-frame" design, intended to keep the weight of the stock to a minimum whilst retaining optimal strength. The adjustment latch of the CTR is concealed within the A-frame design, avoiding snagging on slings or other equipment, and keeping the latch shielded from inadvertent activation. A premium chrome-silicone lock spring is used in the adjustment mechanism to provide dependable locking and long life.

The top of the stock has a sloping profile to provide a comfortable cheek weld whilst retaining a slim footprint. The sling mounting options provided on the CTR stock include; a QD sling socket on either side (accommodates up to 1.5" swivels), 1.25" sling loops on the bottom of the A-frame and at the rear, and a lanyard hole at the toe of the stock which is perfect for custom paracord sling solutions.

The CTR also features a "friction lock" system, intended to eliminate any wobble between the stock and buffer tube for enhanced weapon stability and a premium feel. The adjustment latch includes moulded in linear texturing to ensure that when you need to make an adjustment, there is no chance of slipping off the latch. The friction lock can be found on the bottom of the stock, at the front, and will pop open when the adjustment latch is pressed. After selecting your adjustment, simply squeeze the friction lock closed to eradicate any movement in the stock.

To ensure the stock stays firmly in your shoulder the CTR includes a removable 0.3" rubber butt pad with an anti-slip surface which also serves to increase impact protection in case the rifle is dropped on the stock. This stock has been copied by a plethora of Chinese factories, but the copies are known for their, to put it mildly, "approximate" tolerances, and have been the cause of many facial injuries when used on real rifles. The use of a genuine Magpul CTR on the ONYX [Violet Edition] affords it the best stock money can buy, with the advanced design and inherent strength of Magpul's advanced high density polymer.

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Internal Enhancements

The internal parts present in the Bolster Armouries ONYX are hand-selected for the high quality materials used in their construction as well as for their exceptional performance when installed properly. Each Bolster Armouries Gearbox is hand-built, with each gear being perfectly shimmed for smooth operation and the piston position being corrected for the perfect angle of engagement (AOE) to provide maximum efficiency and longevity.

This gearbox is matched with one of the most well-regarded steel tightbore inner barrels out there, renowned for its rigidity and high quality internal finish. This is paired with the Maple Leaf OMEGA nub and Prometheus Purple HOP-up rubber installed in the phenomenal Gate EON CNC HOP-up unit, a combination which has performed superbly in previous Bolster Armouries AEG releases, reaching out to 60 meters and beyond in its stride. Let's have a closer look at what goes into an ONYX [Violet Edition], and why these parts are so noteworthy:

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Prometheus 6.03mm EG Inner Barrel - Stainless Steel

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FPS Softair CNC Delrin® Polymer Air Nozzle with Inner O-Ring - CNC Delrin® & Rubber

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FPS Softair STEEL CYLINDER TYPE “C” - CNC Machined Steel

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Bolster Armouries EZO Bearings - Heat Treated Japanese Steel

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Gate Protector Cylinder head - CNC Machined Aluminium - Bolster Armouries Custom Violet

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Gate Power CNC Aluminium Hybrid Piston Head - CNC Machined Aluminium - Bolster Armouries Custom Violet

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Gate NOVA CNC Aluminium Enhanced Trigger 2B1 - CNC Machined Aluminium - Bolster Armouries Custom Violet

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SHS Purple 15-Tooth Piston - Reinforced Polymer with Carbon Steel teeth

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Bolster Armouries M115 Spring - Ferrosilicochrome with Zinc coating

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Prometheus Krytac Spur Gear Spacer - CNC Machined Aluminium

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Prometheus EG Hard Bevel Gear - Heat Treated Japanese Steel

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FPS Softair Carbon Fibre Reinforced Tappet Plate - Carbon Fibre-reinforced High-density Polymer

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Gate TITAN MOSFET V2 USB link Expert Firmware

Improves efficiency - Provides pre-cocking function - Protects circuitry

Gate Electronics is well known amongst Airsofters for providing some of the best MOSFETs the Airsoft industry has to offer. These include the basic X-ASR which provides battery protection, the ASTER which adds GATE Control station App functionality, and the Gate's flagship option, the TITAN. The TITAN takes the already well equipped Bolster Armouries ONYX and transforms it from an extremely well tuned AEG into the realms of an advanced training weapon.

The TITAN provides a plethora of functions, including trigger travel adjustment, pre-cocking, Burst mode, Binary trigger, and adaptive active braking. A total of 8 optical sensors within the TITAN are used to track the movement of the gears, piston, and trigger to ensure the gears complete a full cycle with each trigger pull and the gears stop exactly where they should. The TITAN MOSFETs installed in the Bolster Armouries ONYX are pre-setup with the optimal settings for the platform and provide instantaneous trigger response and premium level functionality, including protection against over-discharge of your battery, short-circuits, and overheating.

Unlike other advanced MOSFETs, the TITAN has remarkably low power consumption and includes a "sleep mode" which activates when the ONYX has not been fired for some time. This protects your battery in the event that you forget to disconnect it after a skirmish, whilst other MOSFETs may drain the battery entirely over time, rendering the battery useless.

The settings programmed into the TITAN MOSFET by the Bolster Armouries tech team have been selected to provide the absolute optimum settings for the ONYX platform. The pre-set configuration includes pre-cocking set to medium speed for the best balance between prolonging the lifespan of the internals and providing the highly responsive trigger pre-cocking setups are known for.

A new trick up the legendary TITAN’s sleeve is its Expert firmware, now provided by default with every new Gate TITAN MOSFET. The Expert firmware allows for even more customisation options than ever before, but as with previous Bolster builds, the team advise you to stick to the settings they have programmed in to avoid causing undue wear and upsetting the delicate ecosystem inside the ONYX.

Another improvement in the latest TITAN update from Gate is the ability for the TITAN to communicate with the Warhead Industries Electronic Speed Control module installed on the CNC Black Brushless Motor. This enhances electrical efficiency, improves rate of fire and allows the incredible power of the Warhead Brushless motor to be fully unleashed while keeping everything in time and avoiding excessive strain. The TITAN and Warhead Motor combo has always been a match made in heaven and is now better than ever before.

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Warhead Industries CNC Ultra High speed (M) Motor 36k RPM - CNC Machined 7075 Aluminium housing

Reduces heat build-up - Exceptionally high rate of fire - Electronic speed control

The motor is perhaps the most important part when it comes to providing extreme levels of performance in an Airsoft AEG, though with a faster motor comes the need to upgrade other internal components to prevent premature failure. In a home build, this often results in an "arms race" of parts so to speak, as whenever a part is upgraded it will require another part to be upgraded to prevent damage and maximize the AEG's potential.

The Bolster Armouries tech team is confident that their gearbox internals are the best available, and the only motor option that provides the speed, smooth running, and longevity to get the most out of the other enhanced parts would be the Warhead Industries Ultra High Speed motor. Known for their innovation and pushing the limits of Airsoft performance, Warhead Industries provide the best Airsoft motor around; utilizing the most up-to-date technology to provide a previously unheard of torque to weight ratio, and impressive heat dispersion.

The Warhead motor is housed inside a CNC machined 7075 aluminium shell with ribs machined in to reduce heat build-up within the motor, avoiding one of the primary causes of motor failure with their pioneering design. Utilizing "brushless" motor technology, the Warhead Ultra High Speed motor is considerably quieter than a standard motor, and uses superior quality Neodymium magnets combined with a hand-wound, temperature-resistant copper stator wind to provide its incredible 36,000 revolutions per minute cyclic rate.

Conventional brushed motors suffer immensely from heat build-up when operated for more than 30 seconds continuously, due to the high internal friction generated. In a brushless motor, the main source of heat build-up is simply friction with the air which can be kept at a manageable level for far longer. With the Warhead motor installed, your trigger finger will get tired far sooner than your ONYX AEG will!

This motor also includes an Electronic Speed Control (ESC) module, which is hidden beneath a CNC machined aluminium cover at the base of the motor. This circuit controls and regulates the speed of the motor whilst providing low voltage cut-off and over-current-draw protection, providing an additional level of safety for your high performance Bolster Armouries ONYX.

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Whether breaching rooms is your forte or you prefer to spend your skirmish days on your belly in the bushes, the ONYX SBR [Violet Edition] will prove to be an absolute asset to your arsenal.

A perfectly tuned custom platform built by professionals who take pride in each and every build that leaves the bench, the [Violet Edition] presents the chance to own a fully upgraded premium AEG without worrying about the expense and time commitment of chasing that ever-elusive perfect performance yourself.

The Bolster Armouries team has done all the legwork, testing, troubleshooting, and setup, all you need to do is get out and enjoy the game your way. You can do so with confidence thanks to the 24-month extended warranty and service package supplied with each Bolster Armouries RIF; if anything fails the Bolster team will see that it is resolved as a priority and have you ready to shoot again in no time!

The ONYX SBR [Violet Edition] is probably the best ONYX AEG yet released, benefitting from experience gained over the first 3 (and a half) Bolster Armouries platform drops. With exciting and exclusive aesthetic changes along with improved efficiency thanks to developments in Gate’s TITAN MOSFET allowing communication between it and the Warhead ESC module, the [Violet Edition] produces an astonishing 30 rounds per second in full auto and as with the original ONYX, reaches out to over 60 meters with ease.

This is the closest you will get to "pay to win" when Airsofting; the range, rate of fire and accuracy of the ONYX SBR [Violet Edition] are beyond any mass-produced AEG we have ever seen, raising the lofty performance bar set by the previous Bolster Armouries ONYX variants and equalling the super-speedy OBIRE PCC. When you fire your first shot, you will be astonished, and even more so when you flick the fun switch and let off a long and satisfying burst!

If you are happy to sport every unfair advantage in game but don’t want to go through the trial and error, tuning and faff that goes along with putting together your own custom build, Bolster Armouries has your back. The ONYX SBR [Violet Edition] promises the pinnacle of Airsoft AEG performance, but not just for a game or two before something breaks. For 24 Months, you have your own “Pit Team”, ready to service your ONYX whenever needed to keep it turning and burning at the head of the pack. If you’re looking for the premium Airsoft experience, this is it!