FN M4A1 Air Rifle 177 Caliber BB CO2 Powered Semi Automatic Black

The FN M4A1 Air Rifle is designed to mimic a military M4 rifle. This allows you to get in serious practice, or just have fun plinking with America’s most popular rifle. The standard picatinny rails allow for the attachment of optics or lights (not included). FeaturesFully licensed by FN Herstal w/ authentic markingsDurable full metal receiver and barrel assemblyHigh-performance CO2 systemPicatinny /1913 RIS handguard and upper receiver allow for attachment of optics, lights, lasers, grips, and other accessories!6-Position adjustable CAR stock3 Sling points at the stock, receiver and barrel