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£14.99
  • CNC Aluminium construction
  • Makes selecting your mode much easier
  • Compatible with most AK AEGs

If you want to make your AK AEG easier to manipulate in game, this is the key! The CNC Aluminium Fire Selector for AK AEGs from 5KU is patterned after an enhanced selector design from the USA, boasting a unique look and extended surfaces to allow easy fire mode changes using your trigger finger. 

This means you can keep your hand on the pistol grip during mode changes, transforming the AK to be more inline with modern shooting techniques. The CNC Aluminium Fire Selector for AK AEGs should fit most AK AEGs but as always, a certain amount of expertise will be required to install it. If you want to switch modes faster while keeping your eyes on targets downrange, this enhanced fire selector will give you the edge you need!

£2.99
  • High density polymer construction
  • Replacement original parts set
  • For Double Bell BY-804 & BY-805 SCAR-H

If you've had a mid-skirmish mishap and lost a fire selector, this set should sort you out! The Double Bell Selector Lever Set for SCAR-H is a replacement original parts set for the BY-804 and BY-805 SCAR-H AEG, including a pair of selector levers, two mounting screws and a pair of springs. 

Compatibility-wise, this will likely only fit the Double Bell SCAR-H AEG and won't work with the Double Bell SCAR-L or other brands of SCAR AEG. Anyone who has taken a SCAR apart before knows how easy it is to lose selector parts to the carpet monster; with this set handy, you have no need to worry!

£5.99
  • High density polymer construction
  • Extended mag release - Easy reloads
  • For Delta Armory DA-P series GBB pistols

If you're running a Delta Armory DA-P series EU17 GBB pistol and want to reload faster, this is the key! The Delta Armory Extended Magazine Catch for P-Series GBB is constructed from high density polymer, designed specifically for the DA-P series but potentially compatible with other Gen.3 style EU17 frames (no guarantees though!).

This extended magazine release features a textured surface for optimal grip in all weather and is much wider than the standard mag release, making it easier to reach for smaller hands. The set includes the entire mag release assembly other than the spring, though the original mag release spring used in the DA-P series is a perfect fit. A super affordable upgrade to make pistol handling much easier, this Extended Magazine Catch is just what you need to speed up your reloads!

£11.99
  • CNC Aluminium construction
  • Extended-release plate
  • Designed for CYMA AK platforms

Speed up your reloads with the 5KU CNC Aluminium Quick Release AK Magazine Catch! This machined aluminium Airsoft upgrade allows you to quickly release your magazine without having to take your finger off the trigger. The extended design sits under the trigger guard and provides you with a paddle that can be pressed down to defeat the magazine catch. However, it still provides the classic ambidextrous paddle on the bottom if you fancy an iconic mag flip reload every now and then.

This product is designed for CYMA AK platforms but may fit other brands with modification. It includes all the necessary screws and pins for installation. Enhance your battlefield experience with effortless magazine changes!

£149.99
  • Aluminium construction
  • Licenced by Daniel Defense 
  • Fits most M4/AR-15 AEGs

If your M4/AR-15 AEG needs a high-end makeover, the EMG Daniel Defense DD4™ RIII™ Metal Receiver for M4/AR-15 AEG is what it needs! Styled to match the receiver of the latest real steel Daniel Defence DD4™ RIII™ rifles, this receiver is made from flawlessly machined aluminium with an anodised surface finish to guarantee it maintains its good looks in the long term!

The set includes the upper receiver, lower receiver, front and rear body pins, an ambidextrous Grip-N-Rip® charging handle with mock bolt and a Daniel Defense marked polymer dust cover, completing the elite DD look. The upper receiver features DD4™ RIII™ markings prominently engraved and the right side of the magazine well includes realistic Daniel Defense roll marks, just like the real thing. As we might expect, the upper receiver also includes a 20mm Picatinny rail, ready for your choice of optical sight. 

This receiver is designed to fit M4/AR-15 AEGs and should fit most standard non-ambidextrous version 2 gearbox internals, making it the ideal way to style up your boring M4! The rear includes the standard AEG buffer tube mounting lug and the front features standard receiver threading; compatible with a wide range of barrel nuts and handguards so you can get the look you need. Whether you've got a polymer M4 that needs a realism boost or you want a bit of that in-vogue DD flair for your platform without buying a new gun, the EMG Daniel Defense DD4™ RIII™ Metal Receiver for M4/AR-15 AEG is a slick piece of kit!

£149.99
  • CNC Aluminium construction
  • M-LOK & 20mm Picatinny rails
  • For CYMA CM.04x & CM.05x AK AEGs

If you want a striking new look for your AK, the 5KU CNC Aluminium MK3 M-LOK Chassis for CYMA AK AEGs will do the trick! This CNC aluminium chassis transforms the AK design, bringing it into line with more modern platforms with M-LOK slots, a lengthy 20mm Picatinny rail up top and a dynamic, angular look. 

Compatibility-wise, this kit is designed for CYMA AK AEGs of the CM.04x and Cm.05x series using the VFC external construction style. It may fit other VFC-style AKs but won't fit AKs based on the TM AK-47 AEG (CM.028, CM.5xx, CM.03x & JG AKs) nor will it fit AKS-74U AEGs. If your AK needs a 21st-century facelift to compete with modern designs, kit it out with the CNC Aluminium MK3 M-LOK Chassis for CYMA AK AEGs from 5KU!

£164.99
  • Aluminium construction
  • Licenced by Daniel Defense 
  • Fits most M4/AR-15 AEGs

If your M4/AR-15 AEG needs a high-end makeover, the EMG Daniel Defense DD4™ RIII™ Metal Receiver for M4/AR-15 AEG is what it needs! Styled to match the receiver of the latest real steel Daniel Defence DD4™ RIII™ rifles, this receiver is made from flawlessly machined aluminium with an anodised surface finish to guarantee it maintains its good looks in the long term!

The set includes the upper receiver, lower receiver, front and rear body pins, an ambidextrous Grip-N-Rip® charging handle with mock bolt and a Daniel Defense marked polymer dust cover, completing the elite DD look. The upper receiver features DD4™ RIII™ markings prominently engraved and the right side of the magazine well includes realistic Daniel Defense roll marks, just like the real thing. As we might expect, the upper receiver also includes a 20mm Picatinny rail, ready for your choice of optical sight. 

This receiver is designed to fit M4/AR-15 AEGs and should fit most standard non-ambidextrous version 2 gearbox internals, making it the ideal way to style up your boring M4! The rear includes the standard AEG buffer tube mounting lug and the front features standard receiver threading; compatible with a wide range of barrel nuts and handguards so you can get the look you need. Whether you've got a polymer M4 that needs a realism boost or you want a bit of that in-vogue DD flair for your platform without buying a new gun, the EMG Daniel Defense DD4™ RIII™ Metal Receiver for M4/AR-15 AEG is a slick piece of kit!

£16.99
  • Full Alloy Build
  • 20mm RIS / RAS
  • Railed Top Cover

A replacement dust cover for the top of CYMA CM.040 AK47 Variant Rifles, designed to add a top 20mm RIS / RAS Rail for the attachment of Sights and Scopes without the use of a Side Scope Mount. 

£24.99
  • Polymer or Metal versions
  • Modernised design - "Billet" style
  • For M4/AR-15 AEGs

If your M4/AR-15 AEG is a bit scratched up, the Delta Armory Receiver Set for M4/AR-15 AEG will sort that out! This set includes the upper and lower receiver, fire selector switch and front receiver pin, available in high density polymer or alloy construction. If you're working on a lightweight build, the polymer version is ideal. If you want weight and realism, you want the metal version!

Styling-wise, this receiver set is Delta's own design, inspired by real steel "Billet" receivers found on high-end, ultra-modern real steel AR builds. The trigger guard is enlarged and built-in, improving strength when compared to milspec receiver designs, in line with the latest real steel ARs hitting the market. As we might expect, we are treated to a 20mm Picatinny receiver rail running along the top, ready for a red dot sight, scope or iron sights. 

If you're building from scratch, you will need a charging handle, magazine release, dust cover and mock rear pin to complete the receiver itself, along with your internals and pistol grip. While we can make no guarantees, parts from most other brands should fit this receiver without issues. Whether you need a bargain receiver for a scratch build or want to change the build style of an existing M4/AR-15 AEG, the Delta Armory Receiver Set for M4/AR-15 AEG will do the trick!

£31.99
  • Polymer or Metal versions
  • Modernised design - "Billet" style
  • For M4/AR-15 AEGs

If your M4/AR-15 AEG is a bit scratched up, the Delta Armory Receiver Set for M4/AR-15 AEG will sort that out! This set includes the upper and lower receiver, fire selector switch and front receiver pin, available in high density polymer or alloy construction. If you're working on a lightweight build, the polymer version is ideal. If you want weight and realism, you want the metal version!

Styling-wise, this receiver set is Delta's own design, inspired by real steel "Billet" receivers found on high-end, ultra-modern real steel AR builds. The trigger guard is enlarged and built-in, improving strength when compared to milspec receiver designs, in line with the latest real steel ARs hitting the market. As we might expect, we are treated to a 20mm Picatinny receiver rail running along the top, ready for a red dot sight, scope or iron sights. 

If you're building from scratch, you will need a charging handle, magazine release, dust cover and mock rear pin to complete the receiver itself, along with your internals and pistol grip. While we can make no guarantees, parts from most other brands should fit this receiver without issues. Whether you need a bargain receiver for a scratch build or want to change the build style of an existing M4/AR-15 AEG, the Delta Armory Receiver Set for M4/AR-15 AEG will do the trick!

£6.99
  • Ready To Install
  • Spring Supplied
  • Ambidextrous Design

An alloy, ambidextrous replacement mag release for M4/15/16 variant rifles that is ready to install right out of the packet.

£18.99
  • Railed top receiver cover
  • Steel and alloy construction
  • For CM.045 AKS-74U AEG series

Looking for a way to mount a red dot or telescopic sight to your AKS-74U? The 20mm Railed Top Cover from CYMA is designed for the CM.045 series of AKS-74U AEG rifles and provides a 20mm Picatinny rail which runs the length of the steel top cover, allowing any sighting system which mounts to 20mm rails to be fitted. This top cover will not fit standard AK rifles and is designed for the CM.045 AKS-74U series.

£4.99
  • Original replacement part set
  • For CYMA AK AEGs, may fit other TM clones
  • Includes charging handle rod, spring & top cover latch

If you have lost your AK AEG charging handle spring, rod or top cover retention latch you are in luck! The CYMA Charging Handle Rod & Spring Set for AK47/74 AEG is an original replacement part set for CYMA AKs but should also fit other Tokyo Marui clone AK series AEGs as well. The set includes the charging handle spring, guide rod and top cover retention latch.

£5.99
  • Alloy construction
  • Replacement original part
  • For Delta Armory M4/AR-15 AEGs

If you've lost important parts from your mag release, this set should sort you out! The Delta Armory Magazine Release Catch for M4/AR-15 AEG is a replacement original parts set which includes the mag catch, spring and screw, though the button itself is not included. Compatibility-wise, this set is intended for Delta Amory M4/AR-15 AEG platforms but should also fit most other brands. If your mag release spring went flying or your screw got lost in the carpet, this set should get you back up and running!

£4.99
  • Zenit Style
  • Textured Surface
  • Alloy Constructed

An Aluminium constructed charging handle extension for AK style replicas.

£5.99
  • Steel construction
  • Replacement original parts set
  • For Delta Armory M4/AR-15 AEGs

If you've misplaced parts from your dust cover, this set should cure that! The Delta Armory Steel Dust Cover for M4/AR-15 AEGs is a replacement original part set for Delta Armory M4/AR-15 platform AEGs but should also fit most other brands, though we cannot guarantee it. The set includes the dust cover, axis pin, c-clip, and spring.

£9.99
  • 3D Printed polymer construction
  • Fits SMG-5 Low, mid and high-cap magazines
  • Allows UTR45 AEGs to feed from SMG-5 AEG mags

If you want the 9mm look for your UTR45, Hades Airsoft have what you need! The MP5/SMG-5 AEG Magazine Adapter for UTR45 fits the top of SMG-5 magazines and allows them to be loaded into the Double Eagle UTR45 AEG, giving you more magazine options than ever before. 

The adapter is constructed from 3D-printed polymer and is an adapter for the magazine and not for the gun, meaning you will need one adapter per SMG-5 magazine you plan to use. The perk of this system is that you can use your normal UTR45 magazines and complement them with SMG-5 magazines with adapters without having to change anything, including low, mid, high-caps and even drum magazines! 

£8.99
  • For AK AEG
  • Steel construction
  • Includes mounting screw

A replacement for the original selector lever on your AK AEG. Available in two types; Type A with an extension or Type B which is a standard AK selector lever. These are designed for CYMA AK rifles but should be compatible with most other AK AEGs.

£8.99
  • For AK AEG
  • Steel construction
  • Includes mounting screw

A replacement for the original selector lever on your AK AEG. Available in two types; Type A with an extension or Type B which is a standard AK selector lever. These are designed for CYMA AK rifles but should be compatible with most other AK AEGs.

£5.99
  • Steel construction
  • Replacement original part
  • For Delta Armory M4/AR-15 AEGs

If you've lost your front body pin, you're in luck! The Delta Armory Front Body Pin for M4/AR-15 AEGs is a replacement original part for Delta Armory M4/AR-15 AEGs but should also fit most other brands, though we cannot guarantee it. The set includes the front receiver pin and retention screw and both are constructed from steel.

£10.99
  • Replacement magazine well
  • For Specna SA-G series AEG
  • Allows AR36 to use M4/AR-15/STANAG magazines

If your team use M4s but you prefer the AR36 this will suit your needs! This replacement magazine well will allow you to share magazines with your team and use smaller and more prevalent M4 magazine pouches.

£4.99
  • Alloy construction
  • Replacement original part
  • For Delta Armory M4/AR-15 AEGs

If you've lost your bolt catch, you're in luck! The Delta Armory Mock Bolt Catch for M4/AR-15 AEGs is a replacement original part for Delta Armory M4/AR-15 AEGs but may also fit certain other brands, provided they don't have a functional bolt catch and use a bolt catch style which sits in the receiver recess and isn't retained by screws or a pin. This bolt catch is constructed from alloy and is the standard milspec design.

£7.99
  • Original replacement KRYTAC part
  • Aluminium charging handle
  • Hard anodized finish

If your M4/AR15 AEG's charging handle is looking a bit tired, why not replace it for that box-fresh look! The M4/AR15 charging handle from KRYTAC is an original replacement part for KRYTAC M4/AR15 AEGs but will fit most other M4 AEGs with a version 2 gearbox. Included in the set are the charging handle and charging handle latch, the latter of which is pre-installed on the handle. The charging handle is constructed from aluminium and has a matt black hard anodized finish.

£7.99
  • Replacement original part
  • Compatible with CYMA AK AEG series
  • Black finish AK-74 style 

If you have lost or damaged your original AK AEG bolt carrier it will probably still work, but man, is it ugly! CYMA's Charging Handle/Mock Bolt for AK AEG is a drop-in replacement part which solves this aesthetic issue, providing a black-finished alloy mock bolt carrier mimicking the finish applied to the real AK-74 series bolt carriers. This part will fit almost all CYMA AK AEGs and should also fit others with TM AEG compatibility. 

£6.99
  • Steel construction
  • Original replacement part
  • For CYMA CM.097 AEG series

If your dust cover has fallen off and been lost, the CYMA Ejection Port Dust Cover for M4/AR-15 AEG is the solution! This replacement original part is designed for the CYMA CM.097 AEG series but should also fit M4/AR-15 AEGs from other brands. The dust cover is constructed from steel but does not include the long bar/pin needed to mount it to an AR receiver, so make sure you still have yours and you should be set!

£5.99
  • M4/AR15 fire selector lever
  • For AEG rifles
  • Replacement original part

If your selector lever is looking a bit worn, or you have a fancy selector lever installed and you want to go back to the classic look, check out the M4/AR15 AEG safety selector from CYMA. A replacement original part, this fire selector should go straight onto any CYMA M4/AR15 AEG and will also fit many others! The selector set includes a fire selector blank plate for the right side of the receiver, selector cam, ball-bearing detent, and spring.

£1.99
  • Replacement original parts
  • Front sling mount pin set
  • For CM.041 SMG-5 AEG series

The CYMA Front Sling Mount Pin for SMG-5 AEG is a replacement original part for the CM.041 SMG-5 AEG series and mounts to the front sight block to provide a sling loop on the left side. If your original sling loop is damaged or has gone missing, here is your replacement!

£9.99
  • Steel construction
  • Fits most AK47/74 AEGs
  • Switch fire modes quickly and easily

If you want to take your Airsoft AK AEG to the next level and give yourself some AR-style advantages, the Enhanced Safety Lever from CYMA will speed up your weapons manipulation and make up for the AK's "retro" ergonomics. This safety lever is constructed from steel and is compatible with most Airsoft AK AEG rifles on the market, and lets you switch fire modes using the trigger finger, without removing your hand from the pistol grip.

£3.99
  • Alloy construction
  • Pins for SMG-5 receiver
  • Compatible with CYMA SMG-5 AEGs

If you have been messing around with your SMG-5 AEG and you have lost your pins, CYMA has the cure! This original parts set includes 2 body pins, one for the trigger group and one for the rear receiver/stock. The pins are constructed from alloy and are compatible with CYMA SMG-5 AEGs but may also fit others, though we cannot guarantee it.

£19.99
  • Alloy body for AK47
  • Compatible with TM style AK AEG
  • Rear Tang for full stocks

This metal AK47 body by CYMA is constructed from Aluminium and zinc alloy and is finished in a period accurate gun metal grey. This is the perfect solution for a CM.028 or CM.522 owner who wants to give their AK a metallic feel and increased realism!

About Our Airsoft Receiver Parts

Here at Patrol Base UK, we have a range of airsoft receivers and receiver parts that make great spares or replacements. They’re also perfect for those looking to upgrade their Airsoft assault rifle with something a little more fancy. 

From MP5, M15 and M4 receiver parts to bobby pins and changing handles, we have everything you need to deck out your weapon. Speed up the mag release on your M4 receiver, swap out your old receiver for something more lightweight, or simply add core parts to your replica. 

If you’re working on creating a customised replica, take a look at our entire Airsoft attachments and accessories offering, where you’ll find everything from M4 stocks to KeyMod rails.