APF firearms are made in Americas heartland by craftsmen passionate about firearms, the outdoors, and supporting our nations law enforcement agencies. Whether in the field or on the range, APF builds the caliber you want and offers an array of unique finishes and accessories to bring you the perfect rifle.Features :"18" 416SST Barrel""15.5" MLOK Handguard,Butcher Muzzle Brake.936 Superlative Arms Adjustable Gas BlockRifle-Length Gas SystemHigh Pressure Nickel Boron BCGBillet Upper/Lower ReceiverCMC 3.5lb Single-Stage Flat TriggerMagpul PRS Rifle Stock