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£2.99
  • ABS Polymer construction
  • Replacement part for CM.028 AK47
  • Battery tray/charging handle base

If you have had a mishap with your CYMA CM.028 and cracked the battery tray you aren't the first and you likely won't be the last! The CYMA Charging Handle Base/Battery Tray for CM.028 AK47 AEG is designed to replace the battery tray inside TM pattern AK rifles in the event that it gets broken or damaged. Nothing ruins your AK like the charging handle sliding around loosely in the receiver so if you have a CM.028 that is worse for wear this affordable replacement part could be the key to fixing it up!

£4.99
  • 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.

£9.99
  • Alloy construction
  • Rear sight/trunnion block
  • For CM.04x Series AKM/AK74 AEGs

If you want to restore the factory fresh look to your workhorse AK, this part may be of use. The Rear Sight Block for the CM.04x Series is an original replacement part for AKM and AK74 rifles of the CM.04x series. This part will not work on AKS-74U AEGs, but should otherwise fit AKs which use the LCT style of construction. The sight block is constructed from alloy and comes with steel pins to mount it, and includes the handguard disassembly lever but does not include the rear sight or the rear sight leaf spring. The surface finish of this part is a rough textured finish which is a close match for the hard-wearing paint applied to Russian AK variants of the 1960s and onwards.

£11.99
  • Aluminium construction
  • Available in heat gradation, gold, black and red
  • For Action Army AAP-01 Assassin GBB Pistol

If you are styling your AAP-01 up this part would be great to add a bit of flair to your custom job. The Upper Receiver Lock Button from CowCow is constructed from aluminium, making it stronger than the original, but more importantly, it is available in several exciting colour options! Available in tactical black for more discrete builds or gold, red and glorious heat gradation for those looking for a more eye-catching pistol, the CowCow upper receiver lock button is great for any AAP style!

£11.99
  • Aluminium construction
  • Available in heat gradation, gold, black and red
  • For Action Army AAP-01 Assassin GBB Pistol

If you are styling your AAP-01 up this part would be great to add a bit of flair to your custom job. The Upper Receiver Lock Button from CowCow is constructed from aluminium, making it stronger than the original, but more importantly, it is available in several exciting colour options! Available in tactical black for more discrete builds or gold, red and glorious heat gradation for those looking for a more eye-catching pistol, the CowCow upper receiver lock button is great for any AAP style!

£18.99
  • Alloy construction
  • Replacement lower receiver
  • For ARCTURUS M4/AR15 AEG

If you have had a mishap and scratched the lower receiver of your ARCTURUS full metal M4 platform we have just what you need to make it pretty again! The ARCTURUS alloy Lower Receiver For M4/AR15 AEG is an original replacement part for the ARCTURUS full metal M4 AEG series intended to replace a scratched or otherwise damaged lower. The lower receiver doesn't include any of the controls, body pins or trim parts so you will need these parts from your original lower to complete it.

Compatibility wise this part is intended only for the ARCTURUS full metal M4/AR15 AEG line and is unlikely to work with other brands' upper receivers.

£6.99
  • Advanced Design
  • Textured front to enhance grip
  • Brings your SMG-5 into the 21st century


If you are planning a modern SMG-5 build I have great news for you! You can ditch that dowdy old cocking handle and swap it out it with this ACR-esque modern replacement from CYMA. Made from sturdy Alloy and designed in a thoughtful way, featuring a lightening cut to keep weight down and grip surfaces where you need it, unlike the original. The CYMA extended cocking lever gives ergonomic advantages together with looking operator-af. Suits an M-LOK handguard perfectly!

£14.99
  • CNC Aluminium construction
  • Left side charging handle
  • For Novritsch SSP5 GBB pistol

If you want to set your SSP5 up for competition shooting or speed up its handling in general, the Novritsch SSP5 Charging Handle would be a great upgrade. This charging handle mounts in place of the rear sight, making it ideal for red dot equipped setups, allowing you to manipulate the slide far quicker and easier than before. This is the Left Side charging handle variant, meaning it protrudes to the left side of the pistol, perfect for right-handed shooters.

Whether you use your SSP5 as a primary weapon or as a steel shooting beast in AIPSC, this charging handle will change the way you use the platform and make racking the slide after a reload far easier and more intuitive than ever before. Weighing in a minuscule 5g, this won't slow your SSP5 down one bit!

£29.99
  • CNC Aluminium construction
  • Available in either metallic red or black
  • Extended design for fast reloads!

If you would like your reload speed to increase in line with the speed of your AAP-01 pistol, an extended magazine catch will help get you there! Introducing the Action Army AAP-01 Aluminium extended mag release, a drop in replacement for your original polymer magazine catch which comes with an optional extension piece, intended to give you a split second increase in your reload times and allow easier access to the magazine catch when operating under pressure.

£15.99
  • Aluminium construction
  • Available in several colour options
  • Speed up your reloads!

If you are building a custom Hi-capa or 1911 GBB, whether it is for competition shooting or use as a primary pistol for skirmishing, a cocking lever can help speed up your reloads and get you back into the action faster! The CowCow Raw cocking handle is designed for the TM Hi-capa and 1911 GBB pistols and replaces your rear sight with a side-mounted cocking lever which can be installed for use by either left or right-handed users. This cocking handle is compatible with most TM clone GBB Hi-Capas but will only fit 1911s with a rear sight dovetail, not the classic style with the rear sight machined as part of the side.

£15.99
  • Aluminium construction
  • Available in several colour options
  • Speed up your reloads!

If you are building a custom Hi-capa or 1911 GBB, whether it is for competition shooting or use as a primary pistol for skirmishing, a cocking lever can help speed up your reloads and get you back into the action faster! The CowCow Raw cocking handle is designed for the TM Hi-capa and 1911 GBB pistols and replaces your rear sight with a side-mounted cocking lever which can be installed for use by either left or right-handed users. This cocking handle is compatible with most TM clone GBB Hi-Capas but will only fit 1911s with a rear sight dovetail, not the classic style with the rear sight machined as part of the side.

£29.99
  • Faster Reloads
  • For Scorpion Evo
  • Improve Ergonomics

A Glass Nylon Fiber constructed Magwell adapter for the ASG Scorpion Evo, which serves as a reference point for your lead hand, and makes guiding a fresh Magazine into the Magwell much easier to perform from memory, allowing you to focus your attention solely on the battlefield where it belongs.

£11.99
  • Alloy construction
  • Replacement original part
  • For APS ASR M4 EBB Series

If the charging handle of your APS ASR M4 is looking a bit worn, why not swap it out for a fresh one? The APS M4/AR-15 Charging Handle for APS ASR Series is a replacement original part for the APS ASR series and is configured as a standard M4 charging handle with a low profile latch on the left side. The handle is constructed from alloy and finished in matt black. A good opportunity to make your old M4 look new again!

£5.99
  • For SMG5 and G3/T3
  • Allows releasing the magazine with the trigger finger
  • Ambidextrous operation

If you want to be speed reloading like your AR15 toting pals but you are of a more refined taste and run an SMG5 or G3 you are no longer doomed to be left in the dust! This magazine release extension allows ambidextrous operation, and releasing the magazine with the trigger finger, freeing up your support hand to get that new magazine in!

£17.99
  • Extended Plate
  • Magazine Release
  • OEM Replacement

An OEM factory replacement magazine release for the AMOEBA AM-013 / AM-014 series of Airsoft electric guns. This particular magazine release is the lengthened, extended version. 

£29.99
  • Durable
  • Light Weight
  • Easy Install

The infamous and on high demand end cap. Order it with your body or just as a accessory on your build.

£29.99
  • Durable
  • Light Weight
  • Easy Install

The infamous and on high demand end cap. Order it with your body or just as a accessory on your build.

£29.99
  • Durable
  • Light Weight
  • Easy Install

The infamous and on high demand end cap. Order it with your body or just as a accessory on your build.

£29.99
  • Durable
  • Light Weight
  • Easy Install

The infamous and on high demand end cap. Order it with your body or just as a accessory on your build.

£29.99
  • Durable
  • Light Weight
  • Easy Install

The infamous and on high demand end cap. Order it with your body or just as a accessory on your build.

£29.99
  • Durable
  • Light Weight
  • Easy Install

The infamous and on high demand end cap. Order it with your body or just as a accessory on your build.

£29.99
  • Durable
  • Light Weight
  • Easy Install

The infamous and on high demand end cap. Order it with your body or just as a accessory on your build.

£189.99
  • Easy To Fit
  • Real Wood Parts
  • Wood Upgrade Kit

A real wood furniture component kit, ideal for converting your L1A1 SLR from it's late 1970's era black Polymer furniture, to its original, iconic wooden hand guard, stock, pistol grip and carry handle. 

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.