Enclosed Match Weight Compensator (4-Ports) for USP Compact Airsoft GBB Pistol - SoftAir Survival Game - Hitman Assassin Cosplay - Airsoft3D Color:Glow in the Dark ) Note that for security

) Note that for security reason

Screw the set screw into the Grenade Launcher just far enough so that it triggers the APS 870 Shotshell without putting excessive force on it

You can get the M42F Air Sport Gun on Amazon here:http://www

Get one Pi right off the bat

Enclosed Match Weight Compensator (4-Ports) for USP Compact Airsoft GBB Pistol - SoftAir Survival Game - Hitman Assassin Cosplay - Airsoft3D Color:Glow in the Dark ) Note that for securityThis Airsoft3D product is a frame mounted front muzzle compensator. It attached to the bottom rail of the pistol. Excellent for hiding a longer inner barrel. It is compatible with the following airsoft pistols and their clones. Expert installation may be necessary. May require modification to fit some clones and some brands. Full Metal USP Compact Tactical Gas Blowback Airsoft Pistol Full Metal USP Compact NS2 Airsoft Gas Blowback Gun Three #4 40x1"