View Full Version : LMT MRP AR-15 Uppers

July 14, 2010, 10:26 PM
Hello Everyone,

Has anyone purchased and mounted one of LMT's MRP uppers onto a non-LMT AR-15 lower?

If yes, how has it performed for you?

What configuration did you select?

Will one of their piston uppers work on a lower that was originally part of a direct impingement lower?

I have a slicked up Colt AR-15 lower that would be great for such a project.

Thank you for the input.


July 19, 2010, 07:42 PM
I run an LMT MRP on a Rock River lower with no issues whatsoever. I think their piston version is plug and play with an AR lower as well, but don't have any experience with the piston ones.

July 20, 2010, 02:05 AM
As long as you have the correct bolt carrier group, your piston system should work fine.