bass-n-fire Posted March 23, 2021 Report Posted March 23, 2021 I purchased my first AR15 3 years ago and finally got to shoot it about 2 months ago. Loved it. Then decided I wanted to build one. My son in law gave me a complete PA10 upper to start. Now I’m finding out the “AR10” platform isn’t as standardized as the AR15. I’m having difficulty trying to determine which upper I have (gen1,2 or3). Just want to get correct lower. Hoping I can learn some things here
shooterrex Posted March 23, 2021 Report Posted March 23, 2021 Get a PSA lower. Doesn't matter what Gen it will fit. That upper will not fit anyone else's lower that is known. Their take down pins are also different. I have 2 PSA's . A rifle and pistol in 308. I built the pistol and the only parts that are PSA are the upper and lower receivers.
Belt Fed Posted March 24, 2021 Report Posted March 24, 2021 Welcome Bass n fire. these fellers here know their stuff. unfortunately i'm not one of them. but they can get you goin no matter what the problem
Sharpshooter Posted March 25, 2021 Report Posted March 25, 2021 Welcome from Arkansas! Yes;, this is the place where you will learn real poop!
98Z5V Posted March 30, 2021 Report Posted March 30, 2021 Bass, welcome aboard. Hit this section, and just read topics... https://forum.308ar.com/forum/135-palmetto-state-armory/
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