Tippmann Arms Airsoft Gun M4 Gas Blow Back 6mm Semi Full Auto Made in America Used Store Demo Airsoft Batteries The Sig 556 is Sig

The Sig 556 is Sig Sauer's version of the M4

Tippmann has released the X7 Expansion Chamber Kit

Parts kit included

and barrel cover

Made from durable plastic and will fit on dovetail 3/8" grooves

Tippmann Arms Airsoft Gun M4 Gas Blow Back 6mm Semi Full Auto Made in America Used Store Demo Airsoft Batteries The Sig 556 is SigMultiple Gas Input CO2 Cartridges or Remote Line Adapter Gas Blow Back Realistic Recoil Kick Full Metal (Aluminum) Receiver, Barrel Assembly and Stock Tube Breaks Down Like Real M4 Adjustable rate of fire 8 15 RPS Adjustable velocity 300 400 fps (0. 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