LMT .300Blk Barrels GTG?

[NetJunkie]

Looking to build another SBR but in .300Blk. Was thinking of getting an AAC or PWS 9" upper (or whole gun). But it occurred to me that I have a spare MRP Carbine upper that I'm not really using. Are the LMT barrels good? Any issues? May just do their 10.5" barrel and call it good.

[tom12.7]

The LMT 300 Blackout guns that I saw run were presumably all LMT, that ran without issue that I'm aware of. I wasn't on the guns personally. With what I know now, it's very hard not to recommend not just buying an AAC upper to fit your needs.