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The Range
Rifle & Shotgun Discussion
PSA Blem AR-10 Deal?
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<blockquote data-quote="CC379" data-source="post: 3792795" data-attributes="member: 25394"><p>I have purchased blemished ar15 uppers and lowers from psa never had or noticed any issues, on the lowers there were some scratches but if you put several ar15 lowers in a sack they will come out with scratches on them. </p><p></p><p>something I didn't know on my first ar10 build, unlike ar15's ar10's have noncompatible variations </p><p>[URL unfurl="true"]https://www.thegunpeople.com/2022/05/31/ar-10-vs-ar-15-how-stoners-rifles-stack-up/#:~:text=AR-10%20vs%20AR-15%20Size%20Measured%20against%20the%20entire,block%20and%20gas%20key%20to%20cycle%20the%20rifles.[/URL]</p><p></p><p>A latecomer to military service, the AR-10 had more time to be tinkered with, thus skewing how the gun is put together. In short, different brands of the rifle don’t play nice with each other.</p><p>Thankfully, there is some consistency with two patterns dominating the market — DPMS’s LR-308 and ArmaLite’s AR-10. The issue is, the receivers and the major internal components are not compatible. A DPMS upper receiver is not meant to go on an AR-10 lower receiver. An AR-10 bolt-carrier group is not designed to function with an LR-308 pattern barrel. Neither uses a barrel nut with the same thread count.</p><p></p><p>noticed on psa's website they recommend only using psa parts from the same generation, guess a gen 2 lower will not fit a gen 3 upper properly</p></blockquote><p></p>
[QUOTE="CC379, post: 3792795, member: 25394"] I have purchased blemished ar15 uppers and lowers from psa never had or noticed any issues, on the lowers there were some scratches but if you put several ar15 lowers in a sack they will come out with scratches on them. something I didn't know on my first ar10 build, unlike ar15's ar10's have noncompatible variations [URL unfurl="true"]https://www.thegunpeople.com/2022/05/31/ar-10-vs-ar-15-how-stoners-rifles-stack-up/#:~:text=AR-10%20vs%20AR-15%20Size%20Measured%20against%20the%20entire,block%20and%20gas%20key%20to%20cycle%20the%20rifles.[/URL] A latecomer to military service, the AR-10 had more time to be tinkered with, thus skewing how the gun is put together. In short, different brands of the rifle don’t play nice with each other. Thankfully, there is some consistency with two patterns dominating the market — DPMS’s LR-308 and ArmaLite’s AR-10. The issue is, the receivers and the major internal components are not compatible. A DPMS upper receiver is not meant to go on an AR-10 lower receiver. An AR-10 bolt-carrier group is not designed to function with an LR-308 pattern barrel. Neither uses a barrel nut with the same thread count. noticed on psa's website they recommend only using psa parts from the same generation, guess a gen 2 lower will not fit a gen 3 upper properly [/QUOTE]
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