Bearcatrp wrote:OldmanFCSA wrote:what length gas system is on your barrel ???
Never built an upper so would have to say carbine length. Think I’ll just leave it as it and put my thermal on it. The weaver comment got me thinking. Have always bought uppers complete so I wouldn’t have to deal with issues. Since I have an empty lower after dumping the Grendel, maybe I’ll try putting one together after I get my Howa mini action put together I just got today.
You are going to need pistol length gas and I'm pretty sure it would cost you more to cut and thread anyway than it would be to just buy one. You mentioned you found one for 100, there are other options around that price if you shop sales.