Echo 1's new Modify Bore-Up Cylinder Set for M16-A2 style airsoft rifles.  This set includes a stainless steel bore-up cylinder and cylinder head, silent flow bore-up piston head and bore-up air nozzle.

Classic Army Bore Up Cylinder Set for G36 series. Compatible with Classic Army, ICS, and Tokyo Marui style AEGs,

Classic Army's advanced cylinder replacement for the M24 sniper rifle. It includes steel cylinder with head, vaccum piston, spring guide & APS300% Spring.

Stainless Steel Gas Cylinder for the Classic Army M24 Sniper Rifle, suitable for use with green gas (~500 FPS with .2 BBs and HFC-22)

The ICS Olympic Arms M120 Power Up Kit is a bore-up kit for your ICS M4 and M16 style airsoft rifles.  This kit includes everything you need to built an upgraded upper for your ICS rifle.  It contains the upper gearbox (MA34), an M120 spring (MC39), metal spring guide (MA46), tappet plate & spring (MA50), bolt (MP23), oversized piston head (MC56), aluminum piston (MC05), oversize 4-port cylinder (MC58).

Echo 1's new Modify Bore-Up Cylinder Set for G36 style airsoft rifles.  This set includes a stainless steel bore-up cylinder and cylinder head, silent bore-up piston head and bore-up air nozzle.

Systema Complete Mech-Box for G3 type airsoft rifles. This gearbox set comes with the Systema M100 spring and is tuned for high-speed applications. Completely replaces your exsisting gearbox.

Systema Complete Mech-Box for G3 type airsoft rifles. This gearbox set comes with the Systema M120 spring and Systema Torque-Up Gears installed and tuned.

Systema Complete Mech-Box for G3 type airsoft rifles. This gearbox set comes with the Systema M150 spring and Systema Super Torque-Up Gears installed and tuned.

Systema Complete Mech-Box for M16A1/VN type airsoft rifles. This gearbox set comes with the Systema M100 spring and is tuned for high-speed applications.