I own a LMT MRP and would like to make use of the quick barrel change out options. Does any one have experience with swapping out LMT MRP 5.56 barrels for 300blk out barrels? How did it affect your POI? I'm sure there is more drop that needs to be accounted for but is there anything else that you've experienced.. liked or disliked about switching between calibers on an LMT MRP? I currently run an aimpoint pro but may run an ACOG, Elcan Specterdr or something similar in the near future.
I also am building a custom lower and will need to mate it with an upper. Haven't decided what upper I want. I may just make a dedicated 300 black out..
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