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How-To’s, Product Reviews, and more!

Choosing The Best Bolt Carrier Group

Posted by Modulus Arms on 3rd Feb 2023

Choosing The Best Bolt Carrier Group

The AR15 bolt carrier group (BCG) is one of the most important parts of the gun. In one smooth cycle, the AR15 BCG chambers the round, cycles the gun to eject the spent casing, chambers another a …

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Best AR-15 Mods & Upgrades

Posted by Modulus Arms on 1st Feb 2023

Best AR-15 Mods & Upgrades

The AR-15 is one of the most modular and enhanceable weapons of all time. Technological advances have allowed its performance to grow substantially and they’re still growing today. Whether it’s the …

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Cloud Defensive vs SureFire vs Modlite

Posted by Modulus Arms on 18th Jan 2023

Cloud Defensive vs SureFire vs Modlite

Weapon lights have come a long way from bulky Maglites duct taped to shotguns and rifles (thought some police departments still do this). Three companies come to mind for today’s standard of qualit …

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Top 5 AR15 Weapon Lights (2023)

Posted by Modulus Arms on 13th Jan 2023

Top 5 AR15 Weapon Lights (2023)

We’ve discussed this year’s top of the line pistol lights, but what about lights for an AR15? Users shoot much further with an AR platform than the traditional handgun platform and we most certainl …

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Top 5 Pistol Weapon Lights (2023)

Posted by Modulus Arms on 11th Jan 2023

Top 5 Pistol Weapon Lights (2023)

A pistol mounted light (or at the very least a handheld light) is a must for home defense and generally at any time because you can’t guarantee you’ll always be in a well-lit area. You are accounta …

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What are AR15 Anti Rotation Pins?

Posted by Modulus Arms on 16th Dec 2022

What are AR15 Anti Rotation Pins?

Anti roll pins are one of the many features developed within the AR15 aftermarket over the 2010s. Today we cover their primary uses and merits in an AR build today.What is an Anti Rotation Pin? A …

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