Complete Gearboxes & Cases

This is the very latest version of the Edge gearbox from APS. This is the ambidextrous version, requires an ambidextrous compatible receiver. Wit...

New for 2023, this is the very latest version of the Edge gearbox from APS. With built in mosfet for fantastic trigger response, it has held up t...

A complete V2 front wired gearbox from APS. Includes the mechanical switch, gearset, cylinder, piston, spring, spring guide, trigger and everythin...

A complete V2 rear wired gearbox from APS. Includes the mechanical switch, gearset, cylinder, piston, spring, spring guide, trigger and everything...

A HPA ready drop-in engine by Ares pre-built for AR15/M4 AEGs. Suited for Version 2 spec gearbox shell that use a single sided fire selector. Con...

A genuine, brand new gearbox casing & internal parts for the ASG EVO 3 Scorpion models. A package of parts including the EVO’s gearbox shell, ...

A high speed gearbox for MP5. M100 Spring produces approx 350 fps. With an ULTIMATE® complete gearbox you can make a perfect upgrade by doing a si...

A replacement tappet plate for G&G M4 enhanced gearbox shells. Includes tappet plate spring. G&G Item code: G-14-001-1.

Standard V2 gearbox casing for G&G GR15/CM16/Raider/TR16 series of AEGs.  Note there are different variants of this gearbox for MP5s, blowback...

Standard V2 gearbox casing for G&G GR15/CM16/Raider/TR16 series of AEGs.  Note there are different variants of this gearbox for MP5s, blowback...

CNC machined Gearbox made in GATE factory from aircraft grade Aluminium 7075 T6 with military tensile strength of 570 MPa allows for extreme tunin...

CNC machined Gearbox made in GATE factory from aircraft grade Aluminium 7075 T6 with military tensile strength of 570 MPa allows for extreme tunin...

V2 gearbox casing from Guarder. Compatible with virtually all V2 AEGs. Includes the external screw set for closing the case, no other parts includ...

A complete gearbox for JG Mac10 AEPs. This is a very common gearbox used in a variety of AEPs on the market; also compatible with some MP7 AEPs (w...

A complete V2 gearbox from JG.  Out of the packet it is configured for an MP5, so it has an MP5 selector plate, trigger and is wired to the rear. ...

Retro Arms Gearboxes are manufactured from one block of aircraft aluminium (Dural) EN AW 7075 T651; they are milled on multi-axis CNC machines. Fo...

CNC gearbox V2 designed for airsoft replicas AR15 (M4), M16.This gearbox is manufactured from one solid block of aircraft aluminium (Dural) EN AW...

This gearbox is cast with high strength materials and is suitable for all low, medium and high power setups. The lining of the casing is surrounde...