Sig M17 / M18 P320 Gas Spare Magazine Hi-Capa Metal threaded CCW fits on

Metal threaded CCW fits on SSG-1 speedsoft threaded outer barrel guns

The Elite Force HK USP Co2 Magazine Rebuild Kit

We're impressed with this solid shotgun

Action Army Amoeba AS01 and AS02 Striker Load Indicator & Lock Pin

AMMO 1~5 parameter can be selected on SCR2

Sig M17 / M18 P320 Gas Spare Magazine Hi-Capa Metal threaded CCW fits onSig M18 P320 Gas Blowback Pistol spare magazine. Holds 21 rounds (+1). Comes in either Co2 or green gas spare mags. Fits in the Sig M18 and M17 (cross compatible) gas blowback airsoft gun models. The M17 and M18 magazines fit both models. Black or tan baseplate; Co2 or Green Gas variants (see drop down menu options)