- High density polymer construction
- Stockless design - QD Sling point at the rear
- Ideal as a backup platform for a sniper
If your pistol isn't cutting it, perhaps you need a bigger sidearm! Enter the VORSK VMP-1C, the compact variant of the VMP-1 gas blowback SMG. The VMP-1C takes the original and deletes the stock and muzzle device for a more compact form ideally suited to CQB and use as a sniper or support gunner's backup platform.
Like the original, the VMP-1C is constructed almost entirely from high density polymer with an alloy outer barrel and steel trim parts, giving you a lightweight, bite-sized platform with a full-size punch. Inside, the platform boasts a 6.03mm tightbore inner barrel for an edge in accuracy, despite its short barrel length. The stunning rate of fire of the original has been maintained, making this lil SMG great for laying down covering fire as you relocate to a more advantageous firing position. If you need a secondary with more firepower than the average, the VMP-1C is ideal for your needs!
- Full metal construction
- 6.03mm Tightbore inner barrel
- CNC Aluminium M-LOK/20mm hybrid handguard
If you need a platform for dealing with foes at range, the DA-A15 ALPHA™ is the right tool for the job. This Delta Armory AEG boasts full metal construction and a selection of pre-upgraded internals, including a 6.03mm tightbore inner barrel, rotary HOP-up unit and an upgraded piston, delayer chip and tappet plate from SHS.
On the outside, we are treated to an M-LOK handguard styled after the popular Strike rail system, a unique Delta Armory receiver featuring a built-in enlarged trigger guard and magazine well gripping texture along with the simply awesome Delta Armory battery stock, to name but a few of the slick ergonomic features of the platform. If you need a longer platform for a DMR build or woodland warfare, the DA-A15 is a sure hit if you are into modern ARs!
- Full metal construction
- 6.03mm Tightbore inner barrel
- Reinforced gearbox with quick change spring
If you want to start your Airsoft adventure with a realistic full metal platform or you have your eye on an MK18 MOD.1, the Delta Armory MK18 MOD.1 ALPHA™ should suit you! This AEG is based on the standard issue rifle of the US Navy SEALs but with some modern external enhancements mimicking high-end civilian tactical setups.
Being an AEG of the ALPHA™ line, this MK18 MOD.1 is considerably pre-upgraded straight out of the box, boasting a reinforced gearbox shell, SHS piston with a full steel tooth rack, a quick change ball bearing spring guide and a 6.03mm tightbore inner barrel paired with a rotary HOP-up unit for impressive long-range effectiveness.
With more Picatinny rails than you'll ever need, a unique modern receiver design and the impressive Delta Armory battery stock, the MK18 MOD.1 ALPHA™ is perfect for skirmishers who want the realistic feel of full metal and the performance to back it up!
- Full metal construction
- EAGLE™ MOSFET/ETU Pre-installed
- FREYA™ Gen.2 - 16:1 Gearset, High torque motor
If you're searching for a super flexible M4/AR-15 AEG with an ultra-modern aesthetic and internals to rival the best, the Delta Armory R15 FREYA™ Gen.2 13" M4/AR-15 AEG should suit you perfectly. Boasting a full metal build on the outside and pre-upgraded internals inside, the FREYA's party trick is the Delta Armory EAGLE ETU™, offering more programmable functions than previous versions and allowing you to run the FREYA™ as a DMR with semi-auto only and a stronger spring and quickly swap the spring and fire control options for a CQB skirmish the next day.
Internally, the Gen.2 FREYA™ is better than ever, boasting the perfect combination of the EAGLE™ programmable MOSFET with the best bits of Delta's ETU series internals. These include CNC steel 16:1 high-speed gears, a CNC steel cylinder and spring guide, a CNC aluminium piston head and cylinder head and a high torque motor to top it off. These parts join the usual Delta Armory SHS reinforced tappet plate, SHS piston and 6.03mm tightbore inner barrel, resulting in an impressive down-range effect and a significant improvement over the original but still respectable FREYA™ Gen.1.
If you're looking for a lesser-seen design with AR compatibility and the best combination of Delta Armory pre-upgraded internals, the R15 FREYA™ Gen.2 13" M4/AR-15 AEG from Delta Armory is a fantastic option and better than ever before!
- Full metal construction
- EAGLE™ MOSFET/ETU Pre-installed
- FREYA™ Gen.2 - 16:1 Gearset, High torque motor
If you're searching for a super flexible M4/AR-15 AEG with an ultra-modern aesthetic and internals to rival the best, the Delta Armory R15 FREYA™ Gen.2 13" M4/AR-15 AEG should suit you perfectly. Boasting a full metal build on the outside and pre-upgraded internals inside, the FREYA's party trick is the Delta Armory EAGLE ETU™, offering more programmable functions than previous versions and allowing you to run the FREYA™ as a DMR with semi-auto only and a stronger spring and quickly swap the spring and fire control options for a CQB skirmish the next day.
Internally, the Gen.2 FREYA™ is better than ever, boasting the perfect combination of the EAGLE™ programmable MOSFET with the best bits of Delta's ETU series internals. These include CNC steel 16:1 high-speed gears, a CNC steel cylinder and spring guide, a CNC aluminium piston head and cylinder head and a high torque motor to top it off. These parts join the usual Delta Armory SHS reinforced tappet plate, SHS piston and 6.03mm tightbore inner barrel, resulting in an impressive down-range effect and a significant improvement over the original but still respectable FREYA™ Gen.1.
If you're looking for a lesser-seen design with AR compatibility and the best combination of Delta Armory pre-upgraded internals, the R15 FREYA™ Gen.2 13" M4/AR-15 AEG from Delta Armory is a fantastic option and better than ever before!
- Full metal construction
- Functional De-cocking lever
- 20mm frame rail and 12mm female threaded barrel
If you are eyeing up a new sidearm but aren't up for the more common Hi-capa and EU series perhaps a classic Italian designed pistol would suit your tastes? Introducing the Raven R9 GBB, Raven's entry into the B9 series of Airsoft pistols. The real B9 was most famously issued to the US Army in the 1980s, replacing the venerable M1911.
- GLOCK Licensed
- G17 / 19 Combination
- Latest In GLOCK Innovation
The pinnacle of high quality & authentic airsoft replica's is here, UMAREX Presents the Airsoft GLOCK 19X. If you're a firearm fanatic who's mad about getting as close to the real deal as possible, you've come to the right place.
- Ultra Compact
- Loud Sounding
- Pre-Two Toned
An Electric Powered Airsoft 6mm BB Gun AEG which is designed to be ultra compact and loud, making it stand out from the crowd in CQB situations. This version of the weapon is pre-two toned, meaning no waiting for paint to dry!
- Ultra Compact
- Loud Sounding
- Pre-Two Toned
An Electric Powered Airsoft 6mm BB Gun AEG which is designed to be ultra compact and loud, making it stand out from the crowd in CQB situations. This version of the weapon is pre-two toned, meaning no waiting for paint to dry!
- Bullpup Weapon
- Fully Ambidextrous
- Quick Change Spring
Designed and manufactured specially for Airsoft by APS, this 6mm BB Airsoft AEG is purpose built as a practical and user-friendly AEG, featuring fully ambidextrous controls in an ergonomic bullpup chassis.
- Highly Upgraded
- GATE ASTER MOSFET
- 20mm Railed Handguard
Part of the EDGE 2.0 series of rifles this Airsoft AEG features a high quality build and a range of high quality upgrades right out of the box. No need to worry about upgrading the rifle, this gun comes pre-packed with everything you'll ever need. Just pick up the gun and play. You'll struggle to find another Airsoft replica in this price range with the features this replica has.
- G&G Whirl Valve
- External HOP Adjust
- Ambidextrous Controls
A gorgeous and modern Gas Blow Back Pistol which features G&G's Whirl Valve, an external HOP adjust, ambidextrous controls and a tough Polymer construction with lots of beautiful styling.
- G&G Whirl Valve
- External HOP Adjust
- Ambidextrous Controls
A gorgeous and modern Gas Blow Back Pistol which features G&G's Whirl Valve, an external HOP adjust, ambidextrous controls and a tough Polymer construction with lots of beautiful styling.
- G&G Whirl Valve
- External HOP Adjust
- Ambidextrous Controls
A gorgeous and modern Gas Blow Back Pistol which features G&G's Whirl Valve, an external HOP adjust, ambidextrous controls and a tough Polymer construction with lots of beautiful styling.
- High density polymer construction
- 20mm Picatinny quad railed handguard
- 14mm CCW Male threaded barrel
Those looking for a lightweight backup weapon with fully fledged special forces style looks you can't do much better than the ST46 from S&T. This AEG is designed to look similar to a popular real world platform we all know and love, and that is widely issued to special forces of almost every nation in some form.
The ST46 is constructed almost entirely from high density polymer, making it a great choice for those with less physical strength or those who are a bit clumsy and may bump, scrape or drop their AEG. High density polymer may be less realistic, but it will not show damage as readily as a full metal gun might thanks to its dyed nature allowing it to maintain its looks far better than a painted or anodised finish.
On the inside the ST46 has an alloy version 2 gearbox with a modern Rotary HOP-up unit, setting it up to be competitive and upgrade-compatible without overcomplicating things by reinventing the wheel. If you need a lightweight solution, either as a primary or a backup, the ST46 is the perfect thing!
- Full metal construction
- 6.03mm Tightbore inner barrel
- Pre-Two Tone - No UKARA required!
Whether you are new to the sport or a veteran looking for something a bit different, the VORSK EU18 Vented Slide GBB Pistol; Metallic Edition definitely stands out! Boasting full metal construction and a striking metallic finish on the slide, flared magazine well and trim parts, this is the same proven VORSK EU18 Vented Slide dressed in its Sunday finest.
This means we are treated to a 6.03mm tightbore inner barrel for improved accuracy potential and a steel slide stop for extra strength on a known high-wear part, along with a full complement of external upgrades, tracer compatibility and more. If your sidearm tastes demand an imposing and dazzling piece, the VORSK EU18 Vented Slide Metallic Edition should suit your style!
- Full metal construction
- 6.03mm Tightbore inner barrel
- Pre-Two Tone - No UKARA required!
Whether you are new to the sport or a veteran looking for something a bit different, the VORSK EU18 Vented Slide GBB Pistol; Metallic Edition definitely stands out! Boasting full metal construction and a striking metallic finish on the slide, flared magazine well and trim parts, this is the same proven VORSK EU18 Vented Slide dressed in its Sunday finest.
This means we are treated to a 6.03mm tightbore inner barrel for improved accuracy potential and a steel slide stop for extra strength on a known high-wear part, along with a full complement of external upgrades, tracer compatibility and more. If your sidearm tastes demand an imposing and dazzling piece, the VORSK EU18 Vented Slide Metallic Edition should suit your style!
- Full metal construction
- 6.03mm Tightbore inner barrel
- EAGLE™ Programmable MOSFET inside
If you're looking for a full metal AEG with great DMR potential, the Delta Armory DA-A15-EGL ALPHA™ 13" M-LOK M4/AR-15 AEG is one to watch. As with the other Delta Armory ALPHA™ line AEGs from Delta, the DA-A15-EGL boasts full metal construction with the unique Delta Armory receiver and flawless machining throughout.
Unlike the standard DA-A15, this version is rocking the EAGLE™ programmable MOSFET, offering a wide range of programmable fire modes including semi-auto only and sniper delay. Being a relatively long platform, the inclusion of the EAGLE™ makes the DA-A15-EGL a relatively easy DMR conversion, thanks in part to its quick change spring system. The EAGLE™ MOSFET's other tricks include burst modes of various durations, binary trigger, AUG mode, pre-cocking, trigger sensitivity and active braking, giving you loads of advanced features for a remarkably affordable price.
If you like to skirmish in the great outdoors with a primary at the cutting edge of external design, bristling with accessory attachment points with full compatibility with aftermarket upgrades and an impressively advanced starting point, you'll love the Delta Armory DA-A15-EGL ALPHA™ 13" M-LOK M4/AR-15 AEG!
- Vector Gen.2 Replica
- Special Dual Tone Edition
- Fully licensed KRISS Vector
Manufactured by KRYTAC this is an Airsoft replica of the world famous KRISS VECTOR. Fully licensed and trademarked this weapon features next level realism, and absolutely looks he part. This variant is the special edition dual tone version, which features both black and tan parts.
- Full metal construction - Mostly steel
- 6.01mm Steel Tightbore inner barrel
- High torque motor and pre-wired Perun optical MOSFET!
Those looking to build a modern Russian loadout, your prayers have been answered. ARCTURUS has already served us with a fine AK-12 replica, but this version has a few more tricks up its sleeve!
This AK-12 boasts the same majority steel full metal construction, faithful attention to detail and rock solid feel in the hands, but it now has a Perun optical MOSFET pre-installed, a high torque neodymium magnet motor and is pre-programmed for 2 round bursts!
If you ever had plans to get an AK-12 and upgrade it with a TITAN or ASTER, you no longer need to as the Perun MOSFET offers a wide range of functions, including pre-cocking, ROF adjustment, trigger sensitivity adjustment, programmable fire modes, binary trigger and full diagnostics, with a smart fuse built in and a low voltage alarm to save your batteries from damage. This is the ultimate AK-12 replica!
- Full metal construction
- EAGLE™ MOSFET/ETU Pre-installed
- FREYA™ Gen.2 - 16:1 Gearset, High torque motor
If you're searching for a new M4/AR-15 platform for CQB, the Delta Armory R15 FREYA™ Gen.2 7" M-LOK M4/AR-15 AEG is one to watch. This uniquely styled AR is based on the real steel GrandPower Firearms R15 FREYA™, a modern M4/AR-15 with a skeletonised receiver design intended to improve handling and agility. This translates directly to the Delta Armory FREYA™ AEG which boasts a skeletonised receiver and M-LOK handguard, giving it an unnaturally low weight of only 2.1kg despite its realistic full metal build. This is the generation 2 FREYA™ and is kitted out with all the best bits from the ETU series paired with the EAGLE™ MOSFET. A match made in heaven if you ask us!
Inside the version 2 gearbox, we are equipped with CNC steel 16:1 high-speed gears, a CNC steel cylinder and spring guide, a CNC aluminium piston head and cylinder head and a high torque motor to top it off. These parts join the usual Delta Armory SHS reinforced tappet plate, SHS piston and 6.03mm tightbore inner barrel, resulting in an impressive down-range effect and a significant improvement over the original but still respectable FREYA™ Gen.1.
The EAGLE™ programmable MOSFET of the original FREYA™ remains, offering even more modes than the previous Delta Armory ETU. These include 3 or 5-round burst, binary trigger, sniper delay, semi-auto only, AUG mode, precocking and active braking. If you love an AR as advanced on the inside as it is externally, the Delta Armory R15 FREYA™ Gen.2 7" M-LOK M4/AR-15 AEG is what you need!
- Full metal construction
- EAGLE™ MOSFET/ETU Pre-installed
- FREYA™ Gen.2 - 16:1 Gearset, High torque motor
If you're searching for a new M4/AR-15 platform for CQB, the Delta Armory R15 FREYA™ Gen.2 7" M-LOK M4/AR-15 AEG is one to watch. This uniquely styled AR is based on the real steel GrandPower Firearms R15 FREYA™, a modern M4/AR-15 with a skeletonised receiver design intended to improve handling and agility. This translates directly to the Delta Armory FREYA™ AEG which boasts a skeletonised receiver and M-LOK handguard, giving it an unnaturally low weight of only 2.1kg despite its realistic full metal build. This is the generation 2 FREYA™ and is kitted out with all the best bits from the ETU series paired with the EAGLE™ MOSFET. A match made in heaven if you ask us!
Inside the version 2 gearbox, we are equipped with CNC steel 16:1 high-speed gears, a CNC steel cylinder and spring guide, a CNC aluminium piston head and cylinder head and a high torque motor to top it off. These parts join the usual Delta Armory SHS reinforced tappet plate, SHS piston and 6.03mm tightbore inner barrel, resulting in an impressive down-range effect and a significant improvement over the original but still respectable FREYA™ Gen.1.
The EAGLE™ programmable MOSFET of the original FREYA™ remains, offering even more modes than the previous Delta Armory ETU. These include 3 or 5-round burst, binary trigger, sniper delay, semi-auto only, AUG mode, precocking and active braking. If you love an AR as advanced on the inside as it is externally, the Delta Armory R15 FREYA™ Gen.2 7" M-LOK M4/AR-15 AEG is what you need!
- Full metal construction - Mostly steel
- 6.01mm Tightbore inner barrel
- Perun MOSFET Pre-installed - 2rnd Burst ready!
If you have been eyeing up an ARCTURUS AK-12 but haven't yet taken the plunge, the AK-12 with AK-19 stock will make you glad you waited! This updated version of the AK-12 is styled after the latest AK-12 variants offered to civilian shooters, with improved ergonomics thanks to the new AK-19 stock and enhanced pistol grip. As with the previous ARCTURUS AK-12, this AEG is made almost entirely from steel, with a gorgeous stamped steel receiver and top cover and only the muzzle brake being alloy. On the outside, the AK-12 is slicker than ever before!
When it comes to internals, this variant of the AK-12 is equipped with an in-line MOSFET to improve trigger response and rate of fire and extend the life of the microswitch trigger by improving electrical efficiency. The gearbox is pre-upgraded with components focused on reducing friction, including a ball bearing quick change spring guide, ball bearing piston head, steel gears mounted on 8mm bushings and a ball bearing pinion gear to allow the high torque motor to spin more freely at high speeds. The inner barrel is a 6.01mm tightbore constructed from steel for maximum rigidity, and the ARCTURUS AK rotary HOP-up unit is also present, giving you the most modern innovation in AK HOP-ups with easier-to-apply adjustments and superb air seal.
Whether you are fixed on an AK-12 or you are checking out the AK platform options, the ARCTURUS AK-12 with AK-19 stock would make a fantastic, up-to-date primary for any modern Russian military or PMC loadout!
- Full metal construction
- 6.03mm Tightbore inner barrel
- Ambidextrous controls - Great for lefties!
If you want the gucci look but you don't want to part with those gucci bucks, Double Bell has something you may like! The BY-817 M-416 A5 AEG is styled to match a certain real-world rifle we all know and love and boasts full metal construction, fantastic attention to detail and pre-upgraded internals including a 6.03mm tightbore inner barrel, reinforced steel gears and a quick change spring system for easy power tuning.
As with the latest iteration of the real rifle, the Double Bell AEG is also rocking a full set of ambidextrous controls, making this a fantastic platform for left-handed shooters and those who use shoulder-to-shoulder transitions to make the best use of surrounding cover. Whether you run a special forces loadout or you are looking for a lefty-friendly AR platform with an elite look, the Double Bell M-416 A5 should suit you perfectly!
- Full metal construction
- 6.03mm Tightbore inner barrel
- Ambidextrous controls - Great for lefties!
If you want the gucci look but you don't want to part with those gucci bucks, Double Bell has something you may like! The BY-817 M-416 A5 AEG is styled to match a certain real-world rifle we all know and love and boasts full metal construction, fantastic attention to detail and pre-upgraded internals including a 6.03mm tightbore inner barrel, reinforced steel gears and a quick change spring system for easy power tuning.
As with the latest iteration of the real rifle, the Double Bell AEG is also rocking a full set of ambidextrous controls, making this a fantastic platform for left-handed shooters and those who use shoulder-to-shoulder transitions to make the best use of surrounding cover. Whether you run a special forces loadout or you are looking for a lefty-friendly AR platform with an elite look, the Double Bell M-416 A5 should suit you perfectly!
- Gas Blowback Rifle
- High density polymer construction
- Functional bolt lock, intense recoil
Do you have the need to feel thunderous recoil? Nothing will do it quite like a Gas Blowback rifle! The WE G39C gas blowback rifle operates just like the real thing, with a fully moving bolt carrier which cycles back violently with each shot. The G39C boasts full metal construction despite being made predominantly from high-density polymer and can be field stripped in seconds just like the real rifle.
GBBRs aren't for the faint of heart as this rifle feeds from 30rnd real capacity magazines and needs to be operated like a real rifle; requiring cocking to load the first round. When the mag runs dry, the bolt will lock back which is your cue to reload and hit the bolt release catch inside the trigger guard. No AEG can match the realism provided by a GBBR, and with its reputation for great performance and impressive cool-down resistance, the WE G39C is the perfect tool for the experienced Airsofter who likes a challenge. Consider this a GBB pistol on steroids!
- Full metal construction
- Gate ASTER II MOSFET preinstalled
- Daniel Defense® Quad railed CNC handguard
If you're looking for something to outclass and outperform your opponents, the Specna Arms SA-P19 PRIME™ is exactly that. This AEG has changed the game when it comes to out-of-the-box performance. The internals have been completely revamped to make this AEG a force to be reckoned with. Some of these alterations include a powerful brushless motor, CNC 16:1 ratio steel gears running on 8mm J-CAGE bushings and a reinforced tappet plate for reliable feeding.
The Prime™ is Specna's newest line of AEGs, they have taken their traditional AEG silhouettes and stripped away the internals to make room for a new set of improved parts to increase performance, consistency and rate of fire. The highlight of this AEG is its ASTER II MOSFET, it substantially improves trigger response and offers programmable firing modes. It also reduces the general wear on internal components and increases their reliability and performance during gameplay.
If you prefer a rifle that doesn't require a plethora of upgrades before you deem it skirmish-ready then the SA-P19 PRIME™ should be the AEG on your wishlist.
- Full metal construction
- Gate ASTER II MOSFET preinstalled
- Daniel Defense® Quad railed CNC handguard
If you're looking for something to outclass and outperform your opponents, the Specna Arms SA-P19 PRIME™ is exactly that. This AEG has changed the game when it comes to out-of-the-box performance. The internals have been completely revamped to make this AEG a force to be reckoned with. Some of these alterations include a powerful brushless motor, CNC 16:1 ratio steel gears running on 8mm J-CAGE bushings and a reinforced tappet plate for reliable feeding.
The Prime™ is Specna's newest line of AEGs, they have taken their traditional AEG silhouettes and stripped away the internals to make room for a new set of improved parts to increase performance, consistency and rate of fire. The highlight of this AEG is its ASTER II MOSFET, it substantially improves trigger response and offers programmable firing modes. It also reduces the general wear on internal components and increases their reliability and performance during gameplay.
If you prefer a rifle that doesn't require a plethora of upgrades before you deem it skirmish-ready then the SA-P19 PRIME™ should be the AEG on your wishlist.
- Full metal construction
- Gate ASTER II MOSFET preinstalled
- Licenced by Daniel Defense®
If you're looking for something a cut above the rest, the Specna Arms SA-P27 PRIME™ is exactly that. This AEG has changed the game when it comes to out-of-the-box performance. The internals have been completely revamped to make this AEG a force to be reckoned with. Some of these alterations include a powerful brushless motor, CNC 16:1 ratio steel gears running on 8mm J-CAGE bushings and a reinforced tappet plate for reliable feeding.
The Prime™ is Specna's newest line of AEGs, they have taken their traditional AEG silhouettes and stripped away the internals to make room for a new set of improved parts to increase performance, consistency and rate of fire. The highlight of this AEG is its ASTER II MOSFET, it substantially improves trigger response and offers programmable firing modes. It also reduces the general wear on internal components and increases their reliability and performance during gameplay.
If you're after a rifle that doesn't require a plethora of upgrades before you deem it skirmish-ready then the SA-P27 PRIME™ should be the AEG on your wishlist.
- Full metal construction
- Gate ASTER II MOSFET preinstalled
- Licenced by Daniel Defense®
If you're looking for something a cut above the rest, the Specna Arms SA-P27 PRIME™ is exactly that. This AEG has changed the game when it comes to out-of-the-box performance. The internals have been completely revamped to make this AEG a force to be reckoned with. Some of these alterations include a powerful brushless motor, CNC 16:1 ratio steel gears running on 8mm J-CAGE bushings and a reinforced tappet plate for reliable feeding.
The Prime™ is Specna's newest line of AEGs, they have taken their traditional AEG silhouettes and stripped away the internals to make room for a new set of improved parts to increase performance, consistency and rate of fire. The highlight of this AEG is its ASTER II MOSFET, it substantially improves trigger response and offers programmable firing modes. It also reduces the general wear on internal components and increases their reliability and performance during gameplay.
If you're after a rifle that doesn't require a plethora of upgrades before you deem it skirmish-ready then the SA-P27 PRIME™ should be the AEG on your wishlist.
About 20mm Picatinny RIS/RAS Rail Equipped Airsoft Guns
Many Airsoft guns use 20mm Picatinny rails as their primary attachment interface, offering a wide variety of accessory options which can be mounted to suit the users' preferences. 20mm Picatinny rails can be used to mount vertical or angled foregrips, tactical flashlights, lasers, red dot sights and scopes, and even 40mm grenade launchers, offering easy customisation and the ability to change configurations quickly and with minimal tools.
If you need access to the widest pool of Airsoft accessories, a 20mm Picatinny rail-equipped gun would be the right call. Some 20mm equipped rifles have individual rails on the handguards, and others have four-point RIS/RAS style quad rail handguards with rails at the 3, 6, 9 and 12 o'clock positions. The advantage of a quad rail handguard is the ample rail space you have to mount accessories, though a quad rail may make the front end of the rifle heavier as a result, especially if you deck it out!
From US Army style M4A1s with RAS quad-railed handguards to AR36s with individual rails mounted to the handguard, you have all the options when it comes to 20mm rail equipped guns here at Patrol Base. Whether you are a milsim skirmisher looking for a MK18 or HK416, or you are an AK fan looking for a PMC-style AK with 20mm rails, you will find them here!