"The Barrett Firearms M107A1 Semi-Auto Rifle sends the large .50 BMG down range. The M107A1 is recoil operated and features a fluted barrel with a muzzle brake that takes much of the load off your shoulder when firing. The muzzle brake also accepts the Barrett QDL Suppressor (not included). The modern sporting rifle style pistol grip and safety keeps things intuitive for modern sporting rifle shooters. The heavy-duty, lightweight bipod allows you to dig in while keeping the Barrett supported and maintain control. A detachable box-style magazine allows for quick access to more rounds. The 27 MOA Picatinny top-mounted rail will take about any optic you can imagine with it's extra-long 23"" length. The M107A1 stock features a rear hand grip to aid in a stable shooting platform. You can also add a monopod to the rear hand module. Fluted barrel with chrome-lined chamber Muzzle brake for recoil reduction Modern sporting rifle style pistol grip and safety Heavy-duty bipod and monopod Detachable box-style magazine 27 MOA Picatinny optic rail Flip-up iron sights Thermal cheek guard"