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How-To’s, Product Reviews, and more!

Posted by Modulus Arms Product Team on 17th Jun 2025

Multi-Platform Jigs for AR-15, AR-9, AR-45, and .308

Multi-Platform Jigs for AR-15, AR-9, AR-45, and .308 Modulus Arms has been a leader in 80 lower jig development and router-based tooling since 2014. A multi platform 80 lower jig is a fixture product …

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Posted by Modulus Arms Product Team on 14th May 2025

80 Lower Jig for AR-10/.308: Compatibility Terms

80 Lower Jig for AR-10/.308: Compatibility Terms Modulus Arms has been a leader in 80 lower jig development and router-based tooling since 2014. An AR10 80 lower jig search usually means the shopper n …

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Posted by Modulus Arms Product Team on 5th May 2025

Hardcoat Anodized Finish Explained

Hardcoat Anodized Finish Explained Modulus Arms has been a leader in 80 lower jig development and router-based tooling since 2014. An anodized 80 lower listing means the aluminum receiver blank includ …

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Posted by Modulus Arms Product Team on 14th Apr 2025

Billet Design Flexibility Explained

Billet Design Flexibility Explained Modulus Arms has been a leader in 80 lower jig development and router-based tooling since 2014. A 6061 billet 80 lower listing usually describes a receiver blank ma …

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Posted by Modulus Arms Product Team on 3rd Apr 2025

Forging Grain Structure Explained

Forging Grain Structure Explained Modulus Arms has been a leader in 80 lower jig development and router-based tooling since 2014. 7075 lower forging searches usually combine two ideas: a forged manufa …

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Posted by Modulus Arms Product Team on 28th Feb 2025

Router Jig Extreme Tool Kit Guide

Router Jig Extreme Tool Kit Guide Modulus Arms has been a leader in 80 lower jig development and router-based tooling since 2014. The Router Jig Extreme Tool Kit is Modulus's bundled tooling package f …

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