You might want to consider just a rebarrel on the LMT upper to 6.5CM....
https://www.rainierarms.com/checkout/cart/
I don't think a mag change is necessary, but I can't swear to it.
And lots of good bullets available. Plus the gas system and buffer to mitigate recoil.... You only get ONE neck....
https://www.rainierarms.com/checkout/cart/
I don't think a mag change is necessary, but I can't swear to it.
And lots of good bullets available. Plus the gas system and buffer to mitigate recoil.... You only get ONE neck....