i have a PSA upper & lower laying around that i bought a few years ago (still in the bag they came in), been debating on what to do with them. PSA has a 5.56 10.5" 1:7 barrel for $80 w/free shipping, seems like an ok deal. I am not a big AR guy experience wise, this would be my first "build".
Anyone used the PSA barrels?
Is 1:7 a good twist for 10.5" and 556?
is 556 the way to go for a pistol?
are the PSA upper/lowers even any good?
should i just save the $ and put it towards a SIG 320 (even though Mr. Ogre dislikes them).