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Questions & Answers
Does this come with instructions Expert Answer

The instructions should be included. If they are not, here's a link to the instructions.

https://www.polymer80.com/CMS-Images/Polymer80-RJ556U-Build-Instructions.pdf

by Kurt Colbourne, Gear Expert, September 21, 2021
Customer Reviews
Helpful Positive Review
P80 AR Lower by Jay, September 5, 2022
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
2/4 found this helpful
Helpful Positive Review
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 ...
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1/1 found this helpful
Helpful Negative Review
Garbage for metal lowers by N, March 11, 2022
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 throug...
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3/10 found this helpful
Read All 3 Reviews

Product Discontinued by Manufacturer

Polymer80 P80RJ556U Mil-Spec AR15 Lower Universal Jig Polymer has been discontinued by Polymer80 and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the Gunsmithing Equipment yourself to try and find the perfect replacement for you!

Product Info for Polymer80 P80RJ556U Mil-Spec AR15 Lower Universal Jig Polymer

This product was created for compatibility with milspec 80% AR15 lower receivers no matter whether they are polymer or metal. The Universal Jig is designed with a super rigid long-fiber nylon composite which will allow the customer to utilize the jig up to 3 times. This low-cost jig is the perfect alternative to the expensive and more complicated metal jigs especially if you?re just planning on building a few AR15 lowersThe jig provides a stable platform for milling and therefore encompasses the entire AR15 lower receiver. Other competing jigs are more difficult to secure the lower in the vise and can damage the lower receiver while milling.Includes:2 sided jig 3 trigger guides 9mm HSS end mill 5/16ths drill bit 3/8ths drill bit 5/32nd drill bitimage

Package Contents:

  • Polymer80 P80RJ556U Mil-Spec AR15 Lower Universal Jig Polymer

Polymer80 P80RJ556U Mil-Spec AR15 Lower Universal Jig Polymer Accessories

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Gunsmithing Tools & Accessories

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Gun Triggers

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Gun Parts and Accessories

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Magazine and Accessories

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Gun Barrels

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Gun Stocks

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Gun Sights

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Mounts, Rings and Accessories

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Related Products to Polymer80 P80RJ556U Mil-Spec AR15 Lower Universal Jig Polymer

Polymer80 P80RJ556U Mil-Spec AR15 Lower Universal Jig Polymer Unavailable & Discontinued Models

List of Unorderable Models

  • Polymer80 P80RJ556U Mil-Spec AR15 Lower Universal Jig Polymer , MPN: 850283007582 , UPC: 850283007582 , Code: 32M-GS1-P80RJ556U
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