- Increased gear stability
- Improved gearbox longevity
- Precision adjustment
Upgrade your AEG with a replacement shim set for increased gear stability, precise adjustment and gearbox longevity. Featuring steel ST 2 K60 construction, available in a variety of thicknesses.
Specifications:
- 20 pcs
- 0.1/0.2/0.3/0.5 mm thickness
- 3 mm internal hole
- 6 mm diameter
- Identical to the PRIME™ series grip
- High-density polymer construction
- Compatible with M4/AR-15 AEGs
If you're tricking out your M4/AR-15 AEG, the Specna Arms Ergonomic Pistol Grip for M4/AR-15 AEGs is a great, affordable option! Great for both aesthetic and ergonomic needs, this grip is a standard M4/AR-15 AEG pattern and should fit any M4/AR-15 AEG which follows the original Tokyo Marui build style.
The grip is loosely based on the real steel "gunfighter mod.3" pistol grip, a cutting-edge grip design with a more vertical angle than conventional grips for increased comfort in modern shooting stances. It is also identical to the pistol grip used on some of the PRIME™ AEGs. It features a removable butt plate for easy cable arrangement and motor height adjustments.
- Identical to the PRIME™ series grip
- High-density polymer construction
- Compatible with M4/AR-15 AEGs
If you're tricking out your M4/AR-15 AEG, the Specna Arms Ergonomic Pistol Grip for M4/AR-15 AEGs is a great, affordable option! Great for both aesthetic and ergonomic needs, this grip is a standard M4/AR-15 AEG pattern and should fit any M4/AR-15 AEG which follows the original Tokyo Marui build style.
The grip is loosely based on the real steel "gunfighter mod.3" pistol grip, a cutting-edge grip design with a more vertical angle than conventional grips for increased comfort in modern shooting stances. It is also identical to the pistol grip used on some of the PRIME™ AEGs. It features a removable butt plate for easy cable arrangement and motor height adjustments.
- Deans/T-plug connector
- High quality Amass hardware
- For Airsoft AEGs, RC, Drones etc.
If you're the techy type or want to move to Deans connectors for improved electrical efficiency, the Amass Deans/T-Plug Connector is calling your name! Available in male or female, these high-quality Amass branded connectors provide a strong connection and ultra-low resistance, ideal for Airsoft AEGs, RC vehicles, Drones and other electronics hobbies.
As it pertains to Airsoft, the Male connector should be on the gun side and the Female on the battery side. Make sure you pay attention to polarity when installing either of these and if you're unsure, consult a tech!
- Deans/T-plug connector
- High quality Amass hardware
- For Airsoft AEGs, RC, Drones etc.
If you're the techy type or want to move to Deans connectors for improved electrical efficiency, the Amass Deans/T-Plug Connector is calling your name! Available in male or female, these high-quality Amass branded connectors provide a strong connection and ultra-low resistance, ideal for Airsoft AEGs, RC vehicles, Drones and other electronics hobbies.
As it pertains to Airsoft, the Male connector should be on the gun side and the Female on the battery side. Make sure you pay attention to polarity when installing either of these and if you're unsure, consult a tech!
- For M4/AR-15 AEG
- Aluminium alloy construction
- Specna Arms EDGE™ original replacement part
If you're working on a featherweight M4 build, Specna Arms has the buffer tube for you! The Aluminium Alloy Buffer Tube for M4/AR-15 AEG is compatible with most Airsoft M4/AR-15 platform AEGs and should also fit AR-9 AEGs, which use the same stock mounting lug as standard Marui-spec M4 AEGs.
Providing 6 positions of stock adjustment for whatever M4/AR-15 sliding stock you mount, the tube is constructed from Aluminium Alloy with a glossy finish and is solid as a rock, despite its ultra-low weight. The set also includes the correct length mounting bolt and spacer, so you won't have to work too hard to fit it!
- 4 Different lengths
- Easily adjust your AEGs FPS
- Reinforced polymer construction
The Airtech Studios Set of 4 Spring Shims;11mm Inner Diameter are designed for most VFC, Krytac & ASG spec spring guides. These reinforced polymer shims slide onto the spring guide and add additional tension to the existing spring within the gearbox. The different sizes of shim add different amounts of FPS to your replica. The smallest shim adds roughly 5 FPS to your replica and the largest adds roughly 20 FPS. The shims are designed to be of various sizes so that you can combine them and find the optimal FPS increase to keep your replica within site limits.
These shims give you an easy way to increase your platform's FPS without having to have multiple springs. Simply add or remove the shims as and when you need to adjust your AEGs FPS, with minimal hassle!
- PDW Stock
- For M4/AR-15 AEG
- Better for compact shooting!
The Specna Arms PDW Stock for M4/AR-15 Replicas allows you to stow your rifle in much smaller spaces and use it in a much more compressed shooting stance, perfect for CQB battles. It is primarily constructed from alloy with a polymer butt plate and steel stock bars for additional strength. The adjustment lever can be found on the bottom of the stock and allows the user to extend the stock to multiple positions, depending on their body type and the scenario.
This stock system is compatible with most M4/AR-15 AEG rifles and is identical to the ones found on the PDW series of Specna Arms platforms. The battery compartment is in the buffer tube, which is secured via a threaded cap to keep your battery secure and waterproof. The Specna Arms 7.4V 600mAh 20/40C Battery for PDW is recommended as it will fit. Other similarly sized batteries will also fit.
- PDW Stock
- For M4/AR-15 AEG
- Better for compact shooting!
The Specna Arms PDW Stock for M4/AR-15 Replicas allows you to stow your rifle in much smaller spaces and use it in a much more compressed shooting stance, perfect for CQB battles. It is primarily constructed from alloy with a polymer butt plate and steel stock bars for additional strength. The adjustment lever can be found on the bottom of the stock and allows the user to extend the stock to multiple positions, depending on their body type and the scenario.
This stock system is compatible with most M4/AR-15 AEG rifles and is identical to the ones found on the PDW series of Specna Arms platforms. The battery compartment is in the buffer tube, which is secured via a threaded cap to keep your battery secure and waterproof. The Specna Arms 7.4V 600mAh 20/40C Battery for PDW is recommended as it will fit. Other similarly sized batteries will also fit.
- 6061 CNC Aluminium
- Complete Hop-up unit
- For V2 gearboxes
If you want only the best for your Airsoft AEG, you need this. The MAXX MODEL CNC Aluminium PRO HOP-Up Chamber for M4/AR-15 AEGs is a premium upgrade part, designed to make your AEG shoot with pinpoint accuracy and consistency. CNC aluminium guarantees tight tolerances and superb durability.
The MAXX MODEL Pro unit has a new BB latching system that prevents BBs from dropping out after removing the magazine, no more mess on the floor! The precision rotary adjustment knob allows for extremely precise adjustments, making this HOP a great choice for DMRs as well as standard rifles.
Make your rifle perform to the best of its abilities with the MAXX MODEL CNC Aluminium PRO HOP-Up Chamber for M4/AR-15 AEGs. This premium part will provide unparalleled performance.
- Alloy construction
- Ambi fire selector & mag release
- For Specna Arms PRIME™ M4/AR-15 AEGs
If your Specna Arms PRIME needs a style-up, check this out! The SAAS Alloy Receiver for M4/AR-15 PRIME™ AEGs from Specna Arms is a great way to give your PRIME™ M4 an ultra-modern look, being patterned after real steel "billet" receivers with unique Specna twists. This receiver is made from alloy with steel and alloy trim parts, and is offered in matt black or bronze to suit any build objective!
Unlike other metal receivers on the market, the SAAS receiver includes all of the external trim parts needed to complete the build, from ambidextrous fire selectors and an ambi mag catch to an extended charging handle, bolt catch, mock bolt, forward assist button and trigger guard. Specna even includes an ESA 2.1™ steel quick-change spring guide!
Compatibility-wise, this receiver is designed specifically for the Specna Arms PRIME™ M4/AR-15 series but should also work with other M4 AEGs, potentially requiring modification. If you want to give your PRIME™ AEG an even more premium look, the SAAS Alloy Receiver for M4/AR-15 PRIME™ AEGs from Specna Arms is the way to go!
- Alloy construction
- Ambi fire selector & mag release
- For Specna Arms PRIME™ M4/AR-15 AEGs
If your Specna Arms PRIME needs a style-up, check this out! The SAAS Alloy Receiver for M4/AR-15 PRIME™ AEGs from Specna Arms is a great way to give your PRIME™ M4 an ultra-modern look, being patterned after real steel "billet" receivers with unique Specna twists. This receiver is made from alloy with steel and alloy trim parts, and is offered in matt black or bronze to suit any build objective!
Unlike other metal receivers on the market, the SAAS receiver includes all of the external trim parts needed to complete the build, from ambidextrous fire selectors and an ambi mag catch to an extended charging handle, bolt catch, mock bolt, forward assist button and trigger guard. Specna even includes an ESA 2.1™ steel quick-change spring guide!
Compatibility-wise, this receiver is designed specifically for the Specna Arms PRIME™ M4/AR-15 series but should also work with other M4 AEGs, potentially requiring modification. If you want to give your PRIME™ AEG an even more premium look, the SAAS Alloy Receiver for M4/AR-15 PRIME™ AEGs from Specna Arms is the way to go!
- High-density polymer HOP-Up chamber
- Designed for M4/AR-15 AEGs
- Rotary adjustment wheel
If you need an affordable HOP chamber replacement, the Specna Arms Replacement Rotary HOP-Up Chamber is exactly what you need! This HOP-up chamber is a replacement part and comes with all the necessary pieces for installation, including the HOP-up rubber and nub. The main chamber is made from a sturdy plastic polymer and is compatible with all M4-style AEGs which have V2 Gearboxes. It is an affordable solution to mend your platforms with damaged or old HOP-up chambers.
The Specna Arms HOP-up chamber is a great fix for those old primaries sitting in the garage to get them shooting again.
- Polymer construction
- For Specna Arms CORE™
- Includes charging handle, dust cover, mock bolt
If you need to fix up your Specna Arms CORE™, you need this upper receiver! It is a replacement original part, and is a perfect replacement part if your old upper receiver is looking worse for wear. The upper receiver comes with a pre-installed dust cover, charging handle, mock forward assist and mock bolt carrier, so no need to source these trim parts separately!
- High-density polymer
- Steel QD sling sockets
- For Delta Armory Stribog™ SP10 AEG
If your STRIBOG™ is going stockless, here's what you need! The Delta Armory Polymer Folding Stock for Grand Power STRIBOG™ AEG is designed to replace the included 1913/20mm Picatinny interface, offering a simple, robust side folding stock with QD sling sockets built into each side, ready for QD sling swivels.
This is the STRIBOG's simplest stock option, akin to older SMGs like the UMP, with its lightweight, skeletonised design and serrated butt plate. At the heel of the stock, we can also find a discrete Delta Armory logo engraved in, but realism fans need not worry; this marking is small enough that it won't mar the realistic looks of your STRIBOG™!
- CNC Aluminium construction
- 20mm Picatinny top rail & BASIS slots
- Fits most AK47/74 AEGs & GBBRs
If you're styling up your AK, the 5KU Zco Sport-1 Handguard for AK-74/AK-105 is the key to a slick, modern setup! Inspired by the real steel Zco Sport-1 handguard set, the 5KU version includes a lower handguard, gas tube cover and handguard extension, allowing you to take advantage of the modularity of the Sport-1 setup.
The "B-31L" gas tube cover features a skeletonised 20mm Picatinny rail at the 12 o'clock position, ready for a tactical flashlight, laser aiming module or forward-mounted red dot sight. The B-10L handguard and DL-1 extension include Zco's BASIS attachment slots at 3, 6, and 9 o'clock, ready for BASIS accessories or BASIS rail adapters. As long as you have the B-10L handguard installed, the other parts are purely optional. If you prefer a minimalist build, you don't have to run the gas tube cover or handguard extension, though being made from CNC aluminium means they barely add any weight when installed.
Compatibility-wise, this set should fit most AK AEG and GBBR platforms with the realistic VFC/LCT build style, including CYMA CM.04x series, Specna Arms J series, Evolution "Hard Core" AKs, ARCTURUS AKs and S&T AKs, though in some cases modification will be required. Unfortunately, it is not compatible with AKS-74U-style replicas. If your AK needs a style-up, look no further than the 5KU Zco Sport-1 Handguard for AK-74/AK-105!
- TDC HOP-up kit
- For G&G Rotary HOP-up units
- HOP Arm, trolley, 2 x M-Nubs & centring unit
If you're running one of the newer G&G platforms with the G&G rotary HOP-up, check this out! The Airtech Studios TDC Conversion Set for G&G Rotary HOP-up Unit is intended to provide maximum performance from your original G&G rotary HOP-up unit. Designed specifically for the latest G&G rotary HOP-up design, this kit includes an enhanced HOP-up arm, TDC trolley, 2 x M-nubs and a centring unit.
The benefits of a TDC HOP-up unit include a stronger HOP-up effect and less chance of side-to-side shot deviation when using heavy BBs at high FPS. This part will require modification to your original outer barrel to fit, but thankfully these mods are quite easy and thoroughly explained on the Airtech Studios website. If you want your G&G Rotary-equipped AEG to reach out and touch the enemy at crazy ranges, this TDC Conversion Set is what you need!
- Alloy construction
- Replacement original part
- For A&K M249 SAW AEG series
If you've broken the feeding unit of your M249, this should sort it! The A&K M249 Feeding Unit is a replacement original part for the A&K M249 SAW LMG series, including the MK1, MK2 and MK46 and PARA versions. This is the part which directs the BBs through the feed tube of the mag and into the HOP-up unit. While it may work with other brands of M249 LMGs, we can only guarantee compatibility with A&K-branded M249s.
- Polymer construction
- For fixed stock AK AEGs
- Modernise your Russian rifle!
Do you have a fixed stock AK AEG and want to Westernise it? If so, then you need the Specna Arms M4/AR-15 Buffer Tube Adapter for AK AEG! This polymer adapter is designed to work specifically with Specna Arms J-series rifles, which have fixed stocks. It may work with other brands, but compatibility cannot be guaranteed.
It allows you to attach a buffer tube instead of your fixed stock, meaning you have endless customisation options for the back end of your AK. If you want to fully Westernise your Russian rifle, the fixed stock has to go! With the Specna Arms M4/AR-15 Buffer Tube Adapter For AK AEG, you can get a nice Crane stock to replace it, very American.
- High-density polymer build
- Replacement original CYMA part
- For SMG-5/MP5 A-series (NOT SD or K)
If you have an SMG-5/MP5 to rebuild, the CYMA A-Series Handguard for MP5/SMG-5 AEG should be useful! This replacement original parts set includes the triangular handguard from CYMA's MP5A series, made from robust high-density polymer and suitable for most AEG SMG-5/MP5 AEGs. Please note: This handguard is not suitable for the SMG-5K/MP5K or SMG-5SD/MP5SD series; it is only for the MP5A series.
- Daniel Defense trademarks
- High-density polymer build
- For Specna Arms CORE™ & FLEX™ M4/AR-15 AEGs
If you've got a Specna Arms CORE™ or FLEX™ M4/AR-15 and your lower receiver is looking tatty, this will sort it! The Specna Arms Daniel Defense Polymer Lower Receiver for M4/AR-15 AEGs is made from robust high-density polymer and adorned with licensed Daniel Defense trademarks.
A replacement original part for Specna's CORE™ and FLEX™ lines, this lower receiver may fit other M4 AEGs, but compatibility is not guaranteed.
- 20mm rails for tactical accessories
- Metal barrel and rail assembly
- Fits most MP5/SMG-5 AEG platforms
The Matrix 20mm Picatinny Railed Handguard for MP5/SMG-5 AEGs is a practical upgrade for players who want modern accessory compatibility on their MP5 platform. Designed for improved versatility, this handguard provides multiple 20mm rail sections for mounting grips, lights, lasers or other tactical attachments to suit your playstyle.
Constructed from high-strength polymer with metal accessory rails and an alloy outer barrel, it balances durability with manageable weight. It is compatible with many popular MP5/SMG-5 AEG variants, including TM, CYMA, G&G and Umarex, making it a strong choice for players upgrading or repairing their front-end setup.
- Alloy construction
- For Specna Arms EDGE™/PRIME™
- Includes charging handle, dust cover, mock bolt
If you need to fix up your Specna Arms EDGE™/PRIME™, you need this upper receiver! It is a replacement original part, and is a perfect replacement part if your old upper receiver is looking worse for wear. The upper receiver comes with a pre-installed dust cover, charging handle, mock forward assist and mock bolt carrier, so no need to source these trim parts separately!
- Alloy construction
- Ambidextrous design
- For M4/AR-15 AEGs
Whether you're seeking the custom look or ambidextrous functionality, the CYMA Ambidextrous Charging Handle for M4/AR-15 AEGs is a fantastic addition to your M4 build! Made from alloy, this ambidextrous charging handle allows the HOP-up to be accessed from either side with a single finger, the perfect user-friendly enhancement whether you're left or right-handed.
Styled after famous "Raptor" charging handles, this charging handle is a great way to add a stylish, custom look to your primary without spending too much. Compatibility-wise, this should fit almost every M4/AR-15 AEG on the market and will also fit most AR-9 SMG AEG designs.
- Convert the stock HOP-up chamber
- For ASG Scorpion EVO SMGs
- Includes all parts for TDC conversion
Turn your stock ASG Scorpion EVO's HOP-up chamber to a TDC design without having to replace the whole unit. This kit includes everything you need to install the system into your current HOP-up chamber. It is compatible ONLY with ASG Scorpion EVOs and will not fit in any other HOP-up systems.
TDC (Top-Down-Centre) HOP units are incredibly sought after due to the increased friction they add to BBs, which increases the effectiveness of the HOP applied to your BBs. By installing TDC to the stock HOP-up you are guaranteed compatibility with the platform.
The set also includes rubber nubs, these ensure the HOP is stable while BBs accelerate through the unit, further improving the performance and consistency of your ASG Scorpion EVO. This is a very complex installation process and we only recommend it if you are confident in your understanding and ability to fit it to your HOP-up chamber.
- Licensed Daniel Defense charging handle replica
- Ambidextrous enlarged latch design
- Durable anodised aluminium build
The CYMA DD GRIP-N-RIP® Charging Handle for M4/AR15 AEGs is a licensed replica component designed for players who want realistic styling and practical handling upgrades. Built from anodised aluminium, it offers a strong yet lightweight construction suitable for regular skirmish use or as a quality replacement part.
Its ambidextrous design with enlarged latches allows easy manipulation from either side, making it ideal for left or right-handed shooters and for use with gloves. Whether you are upgrading a worn charging handle or improving ergonomics on your M4 AEG, this part delivers reliable function with authentic rifle styling.
- CNC Aluminium construction
- 20mm Picatinny rails at 3, 6, 9 & 12 o'clock
- Compatible with AKS-74U AEG/GBB Rifles
If you're upgrading your AKS-74U setup with accessory-compatibility in mind, the CYMA 20mm Picatinny Quad Rail Handguard for AKS-74U AEGs is the way to go. Made from CNC-machined aluminium for precise rail surfaces and a flawless finish, this handguard features 20mm Picatinny rails at the 3, 6, 9 and 12 o'clock positions, ready for foregrips, flashlights, laser aiming devices and even forward-mounted red dot sights to be added.
Each rail slot is numerically marked, meaning if you like to chop and change your setups regularly, you can keep a note of your preferred location for each accessory. The fluted exterior of this handguard helps improve its strength while keeping the design lightweight and adding visual interest.
Designed for AKS-74U replicas in both AEG and GBBR form, this handguard sadly doesn't fit the standard length AK-47/74 due to being shorter in overall length. If your Krinkov could use a style-up, the CYMA 20mm Picatinny Quad Rail Handguard for AKS-74U AEG is ideal for customisation addicts!
- Screw Fit Installation
- Improve Consistency
- Reduce Barrel Movement
This polymer constructed piece is designed to screw into your outer barrel assembly, to lock your Inner Barrel in place and removing any motion that is is able to have. This will help improve accuracy and consistency by stopping the inner barrel from wobbling as the BB travels through it. There is an option available for most major platforms, and is an absolute must-have piece for those seeking perfection in their rifles.
- Steel construction
- Mount a PT-1 or PT3 stock
- For LCT, GHK & CYMA Side folding AKs
Does your AK need a touch of style? Add the 5KU PT-1/3 Stock Adapter for LCT/GHK/CYMA Side Folding AK Receiver and you're halfway there! This adapter allows Zenitco PT-1 or PT-3 multi-adjustable stocks to be mounted to an LCT, GHK or CYMA side folding AK receiver and should also work with most PT-1 and PT-3 clones. Made from robust steel to guarantee it will never fail, the PT-1/3 Stock Adapter from 5KU is the first step to styling up your side folder AK!
- Overmoulded texture for all-weather grip
- Integrated oversized trigger guard
- Comfortable 1911-style grip angle
The EMG Tornado Style Grip for GBBR is an ergonomic upgrade designed to replace standard A2-style grips with a more comfortable and controllable alternative. Styled similarly to modern tactical grips, it provides a natural wrist angle inspired by the classic 1911 pistol design, helping reduce strain during extended shooting sessions.
Its overmoulded construction offers enhanced traction whether conditions are wet, dry or gloved, while the built-in trigger guard removes the gap between the grip and receiver for improved comfort. Installation is simple thanks to its drop-in fit design, making it a practical upgrade for a wide range of GBBR platforms without modification, such as MWS and CGS.































