GunTube Under Attack: The Smith & Wesson Lawsuit Expands

Tuning?

tortilla-flats

Let's Go

Joined: Oct 2001

Posts: 22894

EE: 100% (160)

TX, USA

Posted: 2/13/2024 1:49:48 PM EDT

Checking to see if you guys do any "tuning" of firearms. I have an upper that operates as if it's under-gassed (won't hold back bolt on last round; won't feed rounds after first shot). I believe it may be because it wasn't assembled properly (you guys did NOT do this build).

It's a Colt A2 upper with a Colt M4CQB 10.3" barrel.

https://www.ar15.com/forums/armory/Need-Help-with-SBR-Build-Non-Functional/51-549961/

Tom Sawyer.

bigbore

Joined: Jul 2001

Posts: 27728

EE: 100% (681)

OH, USA

Posted: 2/13/2024 1:56:06 PM EDT

[#1]

We can take a look at the upper, but we're swamped right now doing standard thread jobs, so it may sit for a few weeks.

I'm no good at telling people what they want to hear when I dont believe it myself :)

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Tuning?

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Tuning?