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AR15.COM
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6/16/2015 10:43:35 PM EDT
Am going to build my own AR in 9mm and are planning on going with a complete upper kit from PSA. My only question is, am I correct in I will only need to buy a complete lower and assemble and wah-la I should have a ready to fire 9mm AR. I chose PSA because #1-I bought my first AR-15 build kit from them and am 100% satisfied and #2-PSA is the most affordable way to get a 9mm AR and #3-A 9mm AR is the cheapest of the high capacity 9mm carbines. Buying mostly as a cheap to shoot fun gun for my kids.

Thank you,
Arthur.
6/17/2015 8:59:44 AM EDT
[#1]
yes... an alternate solution would be to use a magazine block to convert your 5.56 lower, provided you don't have a step in the hammer...a couple of friends have the CMMG adjustable block, so the height in the lower as well as the ejector itself can be changed.. the ProMag block is less expensive, but not adjustable....the Metalform Colt style mags work well for them...
6/17/2015 10:57:26 AM EDT
[#2]
Are the PSA bolts ramped now?  I thought I saw something in a thread yesterday that they were.  If so, then PSA is probably the easiest path to take.
I  didn't go PSA because I wanted just a rail, no pinned front sight and they were using non-ramped bolts back then.
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