Barrett M107A1, Semi-automatic Rifle, 50 BMG, 20 Fluted Barrel, Muzzle Brake, Black, Cerakote Finish, Flat Dark Earth American 1776 Flag Design, Flip Up Iron Sights, Synthetic Stock, 10 Rounds, Includes Tomahawk, Challenge Coin, Certificate of Authenticity, Case, Bipod and Monopod 20153 What happens when you combine over 35 years of research and development with feedback from the most demanding military end users? You get the M107A1. Utilizing state of the art design, manufacturing, and materials, every component of the rifle has been engineered to be lighter and stronger than its predecessors.