I went to the agency range today and tested the LMT Enhanced carrier in my BCM 14.5" middy (w/ MOE HG, std FSB, & permed FSC556). I'm running the Vltor A5 system with an A5H4 buffer and a Brownells CS rifle spring. Lubed generously w/ Slip 2K EWL. Bolt hasn't been cleaned in about 600 rounds, carrier was received in used condition and appears to have about 300-500 rounds through it.
Ran about 100 rounds of XM193. Tested for lock-back on empty over the last ten rounds. Used a loose hold on the pistol grip with no shoulder purchase. Ten rounds loaded one at a time into a Lancer L5 (first gen, w/ rubber base plate and non-anti-tilt follower) 30rd magazine.
Now, this this is a damn soft shooter. No video because I was solo.
I did not think this would work with such a heavy buffer; I thought I would need to step down to an A5H3 or maybe the std A5H2.
I did use a felt finishing dremel wheel (no polishing compound) to remove the rough phosphate finish from the 4 bearing surfaces of the carrier and the sides of the gas key. I didn't remove any metal, just a light surface polishing (just enough to remove the finish). This definitely helped the recoil assembly feel much smoother when working the charging handle by hand.
I'm very pleased with the recoil characteristics and reliability is still at 100%. It's killer smooth.
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