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Polymer80 P80RJ556U Mil-Spec AR15 Lower Universal Jig Polymer
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Most Helpful Positive Review P80 AR Lower
For The People In The Comments This Is A POLYMER 80 Jig For Polymer 80 AR Not Metal 80% Polymer and Metal 80% Are Different Materials It Wasn’t Design To Work With Metal 80% Ar Lowers I Never Use This Product Before
Most Helpful Negative Review Garbage for metal lowers
Absolutely no way to use this properly to mill a metal lower reciever. The jig flexes way too much even in a good vice. May work for polymer lowers I'm not sure but it flexed way too much to be used with a metal lower. The bits did seem to cut through the metal just fine. The only failing point was ...
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If you can't mill a metal 80% lower with this, you shouldn't be touching a mill

by Good citizens, from NH, United States Written on November 22, 2022
I did 5 lowers off of one jig before I threw it away and every 1 of them where perfect everyone. I just wanted to push the envelope to see how good of a product it is and I absolutely love P80, and my salesman james ;)always has taken care of all my shopping needs... and tech advice, he runs by the engineers so he is always spot on with facts to lead me into a proper product/purchase...I love you o.p.
Pros:
  • Prices, quality, availability, and service
Cons:
  • Never have enough ;) no new models
Would recommend: Yes
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