Mk12 Mod 1 in AA 6.5 Grendel

[LRRPF52]

A lot of guys who can pick and choose from a variety of platforms just use 77gr Mk262 in a free-floated M4A1 SOPMOD Block II's, since the performance difference at distance isn't so huge to justify the 18" barrel over the 14.5" barrel, while lugging the 18" barrel around all the time is a significant performance limiter in the maneuverability game, especially working in and out of vehicles and buildings day after day.