Polymer80 AR15 80% Receiver w/ Jig Kit
This is the exact kit that has finished more custom rifles than any other in America: the legendary Polymer80 AR-15 80% Receiver w/ Jig Kit delivers everything you need in one box to legally build your own unserialized, mil-spec AR-15 lower in under an hour.
Included in every kit:
- Polymer80 forged 7075-T6 80% lower (available raw, black anodized, or limited Cerakote colors)
- Deep laser-engraved FIRE/SAFE markings
- Threaded bolt catch pin hole + broached magwell
- 80% Arms Easy Jig Gen 3 (multi-platform with lifetime warranty)
- 3/8″ solid-carbide ZrN-coated end mill
- Complete hardened drill bit set (5/16″, 3/8″, 5/32″, 7/64″, #21)
- Depth collars, cutting oil, torque card, and reusable case
No mismatched tools, no extra shipping charges, no surprises — just open the box and start milling.
Why This Kit Has Sold Over 200,000 Units Since 2020
| Feature | P80 AR-15 w/ Jig Kit | Buying Parts Separately |
|---|---|---|
| Price | $259–$299 | $340–$420 |
| Compatibility | 100% guaranteed | Risk of wrong bits/jig |
| Average Finish Time | 48 minutes | 90+ minutes |
| Lower Material | Forged 7075-T6 | Often 6061 billet |
| Jig Warranty | Lifetime replacement | Varies |
Complete 2025 Kit Specifications
| Component | Specification |
|---|---|
| 80% Lower | Forged 7075-T6 (raw or Type III black anodized) |
| Markings | Deep laser FIRE / SAFE |
| Magwell | Fully broached & slightly flared |
| Bolt Catch | Threaded 1/4-28 (no roll pin) |
| Buffer Thread | 1-3/16 × 16 TPI mil-spec |
| Jig | 80% Arms Easy Jig Gen 3 (works on forged, billet, polymer) |
| End Mill | 3/8″ solid carbide, ZrN coated |
| Drill Bits | Hardened steel, full set with collars |
| Made In | USA |
How to Finish It – Average Builder Time 48 Minutes
- Assemble Easy Jig Gen 3 (tool-less, 2 minutes)
- Secure lower in jig
- Drill all holes
- Mill side walls & fire-control pocket
- Deburr — drop in your favorite LPK and go shoot
Real 2025 Builder Reviews “Finished in 45 minutes flat. Fit my Aero upper perfectly — zero wobble.” – Jake R., Texas “Saved $130 and got the best jig on the planet included. Threaded bolt catch is life-changing.” – Sarah M., Arizona “Black anodized version looks factory. Already built three this year.” – Chris T., Florida
Frequently Asked Questions Q: Does the jig work on billet or polymer lowers too? A: Yes — Gen 3 is truly universal.
Q: Can I Cerakote the lower after milling? A: Absolutely — raw version is perfect for custom coating.
Q: Is it serialized? A: No — legally a non-firearm until you finish it.
These Sell Out Every Single Restock Most drops are gone within hours — especially Cerakote colors.
Add the legendary Polymer80 AR-15 80% Receiver w/ Jig Kit to your cart now — and build the exact rifle you want, 100% yours, this weekend.
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