Tippmann Arms Airsoft Gun M4 Gas Blow Back 6mm Semi Full Auto Made in America NEW Pants & Slide Shorts Jam Detection ECHO1STAG15COM Jam Detection Players have never been offered such a complete package – the performance of a tournament marker…the flexibility of a mechanical marker…the durability of a Tippmann®…and the ability to customize their marker with thousands of different looks Multiple Gas Input – CO2 Cartridges or Remote Line Adapter Gas Blow Back Realistic Recoil Kick Full Metal (Aluminum) Receiver 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