HFC Full Auto M11A1 / Mac 11 Airsoft Gas Blowback Submachine Gun w/ Mock Silencer I have had this gun for a long time and I just don’t need as a side arm anymore works great Full Metal Reinforced Internal Blowback Unit Up to 20 Rounds Per Second Steel Retractable Stock with Folding Shoulder Rest Muzzle Velocity: 300~330 FPS (Measured with 0.20g BBs and Green Gas) Gas Type: Green Gas, Propane Fire Modes: Semi/Full-Auto, Safety Package Includes: Gun, Magazine, Mock Silencer New this gun costs 115.00 with out shipping