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Polymer vs Aluminum Lower Receivers

Posted by Modulus Arms on 29th Apr 2022

Polymer vs Aluminum Lower Receivers

Above -  ATI AR-15 Polymer AR-15 Lower Receiver (Source: AR15.com)In the world of firearms, we are familiar with lower receivers being the heart of every weapon, as it's where the magazine is …

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Why You Should Be Training With a .22LR AR15

Posted by Modulus Arms on 19th Apr 2022

Why You Should Be Training With a .22LR AR15

The past three years of the global logistical infrastructure’s failure has affected every commercial and industrial sector imaginable. Ammo prices rose to sky high value amidst uncertain times ridd …

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Why Buy A Raw 80% Lower?

Posted by Modulus Arms on 27th Nov 2021

Why Buy A Raw 80% Lower?

A raw 80 percent lower is exactly what it sounds like - an 80 lower that has not had any treatment for its surface’s finish which means you get a lower receiver without any color or coating, just b …

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80 Lower: Forged vs Billet

Posted by Modulus Arms on 19th Nov 2021

80 Lower: Forged vs Billet

The AR’s receiver design is simple enough that given the time and effort, one can even make a stripped lower receiver out of aluminum cans. AR lower receivers and 80 lowers available on the market …

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AR9 Parts Guide

Posted by Modulus Arms on 16th Nov 2021

AR9 Parts Guide

The AR9 is a wonderful thing. Since it is a part of the AR platform, it allows users to take advantage of the wide variety of parts that any AR-15 or AR-10 could also use. Given its extreme modular …

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Best AR10 Lower

Posted by Modulus Arms on 1st Nov 2021

Best AR10 Lower

While having a 300 BLK build can mean simply having a dedicated 300 BLK upper receiver and a normal AR15 lower borrowed from a previous gun, having a 308 AR means you have to do an entirely new bui …

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