Tippmann Arms Airsoft Gun M4 Gas Blow Back 6mm Semi Full Auto Made in America NEW Airsoft Facewear & Headwear Recommended for regulated air supply loader parts Recommended for regulated air supply and "low pressure" equipment as well as some other items 20 g BB) Adjustable Hop up Bucking No Batteries Firing Modes: Safe Semi Full Auto Adjustable Front and Rear Flip Up Sights Front and Rear Sling Mounts Anti Jam Technology Low Maintenance – No Gear Box Easy Disassembly Tool Less Mag Disassembly Full Length Top Pic Rail Modular Foregrip – 8 sided picatinny capable With Additional Rails included Glass Filled Nylon grip Optics Ready with Flip Up Sights Adjustable 5 Position Stock Accepts many real AR stocks and handguards Works with many AEG mags when remote line system is used Remote line adapter included Accepts industry standard AEG inner barrel Threaded Flash Suppressor (M14x1 Barrel Assembly and Stock Tube – Breaks Down Like Real M4 Adjustable rate of fire – 8 15 RPS Adjustable velocity – 300 400 fps (0