M4 & AEG Parts.
Shop M4 and AEG upgrade parts for performance, reliability and custom builds. Browse HPA engines, gearboxes, hop-up components, buckings, inner barrels, electronics, triggers, controls, externals, grips, stocks and small parts for M4-platform airsoft builds.
Browse M4 Parts
Browse the full M4 & AEG collection below or jump directly into the main component groups for internals, electronics, controls, externals and supporting build parts.
01
All M4 & AEG Parts
Browse the complete M4 and AEG parts collection
02
HPA Engines & Gearboxes
Core drive systems and M4 conversion components
03
Hop-Up, Buckings & Inner Barrels
Accuracy, consistency and air-seal components
04
FCUs, Trigger Boards & Electronics
Control systems, electronics and firing components
05
Triggers, Controls & Mag Releases
Player controls and ergonomic upgrade components
06
Bodies, Uppers & Externals
Receivers and external components for custom builds
07
Grips, Stocks & Accessories
Ergonomic and supporting external components
08
Pins, Screws & Small Parts
Replacement hardware and essential build components
Shop M4 & AEG Parts
- All Products
AirTac Customs “Shard” Aluminum M4 Mag Release
£32.99 Select options This product has multiple variants. The options may be chosen on the product page - All Products
AirTac Customs ABS CRBN Gen 5 Upper
£159.99 Select options This product has multiple variants. The options may be chosen on the product page - All Products
AirTac Customs Aluminum Endcap
Original price was: £39.99.£29.99Current price is: £29.99. View product This product has multiple variants. The options may be chosen on the product page - All Products
AirTac Customs Aluminum M4 Body Pin
£12.99 View product This product has multiple variants. The options may be chosen on the product page - All Products
AirTac Customs Aluminum M4 Pivot Pin
£12.99 View product This product has multiple variants. The options may be chosen on the product page - All Products
AirTac Customs Apex M4 Trigger Guard
£24.99 View product This product has multiple variants. The options may be chosen on the product page - All Products
AirTac Customs M4 Scythe Tunable Trigger
Original price was: £32.99.£29.99Current price is: £29.99. Select options This product has multiple variants. The options may be chosen on the product page - All Products
AirTac Customs Precision Steel Inner Barrel
£21.99 Select options This product has multiple variants. The options may be chosen on the product page - All Products
AirTac Customs x MAC Gen 3 Cerakoted Skeletonized CRBN Gearbox
Original price was: £110.99.£99.99Current price is: £99.99. View product This product has multiple variants. The options may be chosen on the product page - All Products
AirTac Customs x Polarstar Blackout F2 HPA Engine
Original price was: £449.99.£429.99Current price is: £429.99. View product - All Products
Monk Oracle GEN X – Pooty Custom
Price range: £1,029.99 through £1,714.99 Select options This product has multiple variants. The options may be chosen on the product page - All Products
Monk x Polarstar – ESG-MR
£179.99 View product This product has multiple variants. The options may be chosen on the product page - All Products
Polarstar F2 – HPA Conversion Kit – M4
Original price was: £449.99.£429.99Current price is: £429.99. View product - All Products
Polarstar Wire Harness Rev. 2
£13.99 Select options This product has multiple variants. The options may be chosen on the product page - All Products
SPEED Airsoft HPA Tunable BLADE Trigger
£29.99 View product This product has multiple variants. The options may be chosen on the product page
Build Your M4 Properly.
Not sure which gearbox, HPA engine, hop-up, barrel, electronic component or external part suits your platform? Speak to Speedsoft Direct and we can help you choose compatible M4 and AEG components for your build.