Question: what is the difference between the barrett m82 and m107

title: Barrett M82
text: Then the Army decided on the Barrett M82 , a semi-automatic rifle . In summer 2002 , the M82 finally emerged from its Army trial phase and was approved for `` full materiel release '' , meaning it was officially adopted as the Long Range Sniper Rifle , Caliber . 50 , M107 . The M107 uses a Leupold 4.5 -- 14 × 50 Mark 4 scope . Overwatch 

Answer: answer: The Barrett M82 is a semi-automatic rifle .
The M107 uses a Leupold 4.5 -- 14 × 50 Mark 4 scope .