FN Herstal FNX-45 Tactical Gas Blowback (GBB) Full Metal Airsoft Pistol - Tophatter's Army Products & Self DefenseThis is an exact replica of the FNH FNX 45 tactical pistol. Features include a full metal slide and durable polymer frame. The outer barrel is threaded allowing the use of a barrel extension if desired. The magazine capacity is 25 BBs. This is a blowback pistol which means that the slide will shoot back with each shot fired, cycling the next round and adding some recoil for realism. Features: Full metal (aluminum) slide w front and rear serrations