Choosing a PSA Upper for 1st AR Build

[Mosin Bubba]

Pencil vs A2, personally I really like pencil barrels, but it all depends on what you plan to do. Me personally I shoot offhand, and usually just a 20rd mag or two at a time. I don't expect benchrest accuracy, I never get the rifle very hot, and I feel the difference in weight even on a 16" gun, so pencil barrels are a natural fit. If your idea of a range day is shooting 100 rounds pretty quickly from a bench, nitride/A2 may very well be the better fit.

Speaking of accuracy, it's like another poster mentioned. By the time you start shooting 2-3 MOA bulk ammo with a 2 MOA dot sight or irons and pulling an 8 lb mil-spec trigger, any intrinsic difference between SS and nitride is going to be unnoticeable.

Barrel wear, I've never shot out an AR so I can't say for sure, but I'd be surprised if either one crapped out before 5000 rounds.

 

[DustyGmt]

Larue has a single stage version of their trigger now. IIRC, the pull weight is a bit higher than the MBT-2S.

Well I was kind of excited to hear about the Larue SS but after watching a video it looked like it had a ton of creep and actually seemed pretty lousy. I'll stick with the 2S for Larue....

Th Geissele is a great value too, I prefer it but at 2× the cost it's something to take into account.