Key Features

Polymer80 .308 & AR10 80 Lower Jigs offer precision templates for accurate milling, drilling, and pin holes on aluminum or polymer large-frame receivers. Kits come complete with end mills, drill bits, and detailed instructions for flawless results in under two hours.
Designed for DPMS-style and Armalite patterns, they support multiple .308 variants with heavy-duty steel or aluminum construction for durability across builds.
Integrated guides and clamps ensure perfect alignment, supporting buffer tube installations and trigger groups with minimal setup.

Top Benefits

• Superior Precision: Exact tolerances for reliable .308/AR10 function, including fire control and magazine well alignment.

• Significant Savings: Bypass gunsmith costs and build custom large-frame rifles without high markups; reusable for multiple projects.

• Rugged Durability: Engineered for high-torque milling, handling tough aluminum lowers repeatedly.

• Beginner-Friendly: All-in-one kits with no advanced tools required, complete from start to finish.

Why Polymer80 Jigs Excel

Polymer80 Inc dominates large-frame jigs, optimized for their 80% lowers but compatible with mil-spec DPMS/High profile patterns. Bundles priced $90-120 include receivers, bits, and fasteners for seamless AR10 or .308 projects.
High-stress reinforced areas withstand demanding builds, delivering pro-level performance for enthusiasts.

Start Your Rifle Build Today

Order your .308 & AR10 80 Lower Jig from Polymer80 Inc today and unleash big-bore custom potential. Benefit from rapid shipping, dedicated support, and compliant tools for top-tier home firearm assembly.