Airsoft Gun Internal Upgrade Parts
Gearbox, Hop Up Units, Inner Barrels, ETC!
Airsoft GI has worked with enough airsoft guns to know that what’s inside really counts. If your airsoft gun has a broken mechanism or has simply fallen behind the times, our internal upgrade parts will have you back in the game. We have airsoft gun internal parts for AEGs, spring sniper rifles and gas blowback pistols and rifles. Add aftermarket AEG cylinder heads to maximize compression or install a precision inner barrel for better accuracy. Replace a burned-out stock motor with a standard OEM motor or upgrade to a high torque model that can handle other internal upgrades.
Our gas airsoft internal upgrades include recoil springs that increase felt recoil, loading nozzles that improve durability and high flow valves to increase FPS velocity. You can upgrade your spring rifle as well with parts that give your shots more distance and more precision. We carry parts from all the leading airsoft parts manufacturers such as Action Army, Danger Werx, G&G, Modify, SHS, and Lonex – and we make some of our own internal airsoft parts. Full tech support comes with every purchase, so you can turn to us if you encounter troubles while you work.
Classic Army Reinforced Piston (Full Metal Teeth)
- Polycarbonate Construction
- Steel Teeth Rack
- Lightweight Design
- Speed Rails
$25.00
Classic Army 9mm Ball Bearing Set
- Metal Construction
- Designed for 9mm Gearboxes
- Increased Reliability Over Plastic Bushings
- Includes: Six (6) 9mm Bearings
$15.00$7.50
Save: $7.50
Classic Army M24 Steel Trigger Set
- Heat Treated Steel
- Increases Durability and Reliablity
- Drop-in part for Classic Army M24 LTR
$39.99$20.00
Save: $20.00
Classic Army High Torque Up Motor (Short Type)
- Designed for Higher Rated Springs
- Better Trigger Response
- O Type Pinion Gear
$45.00
Classic Army Non Bore Up AUG AEG Cylinder Kit
- Designed for AUG
- Metal / Polycarbonate Construction
- Includes: Piston Head w/ Bearings, Cylinder, Cylinder Head, Air Nozzle
$65.00$32.50
Save: $32.50
Classic Army Non Bore Up MK36 AEG Cylinder Kit
- Designed for MK36
- Metal / Polycarbonate Construction
- Includes: Piston Head w/ Bearings, Cylinder, Cylinder Head, Air Nozzle
$65.00$32.50
Save: $32.50
Classic Army Non Bore Up FS51 AEG Cylinder Kit
- Designed for FS51
- Metal / Polycarbonate Construction
- Includes: Piston Head w/ Bearings, Cylinder, Cylinder Head, Air Nozzle
$60.00$30.00
Save: $30.00
Classic Army Steel Pinion Gear (Silver)
- O-Type Pinion Gear
- Steel Construction
- Pressure Fitted
- Includes: One Pinion Gear
$15.00$7.50
Save: $7.50
Classic Army 6.04mm High Precision MK36C Inner Barrel (248mm)
- 6.04mm Bore
- Stainless Steel Barrel
- Increased Accuracy / Range
$40.00$20.00
Save: $20.00
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