Polymer 80

Polymer 80 — tested, measured, and ranked across every major 80% brand we stock. This isn’t a single-brand showroom. Our editorial team has put Polymer80, 80 Percent Arms, 5D Tactical, Lone Wolf Distributors, Geisler Defence, JSD Supply, and 80P Builder side-by-side on the bench.
In Polymer 80, every product carries a spec-sheet we’ve independently verified: weight measured to the gram, price-per-ounce-of-polymer, jig compatibility matrix, ejector-channel depth, and the real-world defect rate reported by our builder panel. If a frame has a known fitment issue, we flag it. If a finish fails our 500-round durability test, we say so.
Search intent served: polymer 80 frame, p80 frame kit, 80 lower frame. For head-to-head matchups check P80 vs 80 Percent Arms, P80 vs 5D Tactical, Lone Wolf vs P80, Geisler vs P80, and JSD Supply vs P80.
For yearly rankings: Best 80% Frame 2026 and Best Jig 2026. We only sell products we’ve tested. If it’s in Polymer 80, it earned its spot.