Aug A3M1 Conversion Kit 5.56X45 Nato Cal. 14.5'' Bbl Blk

The Heresy Design Inc. Aug A3M1 Conversion Kit in 5.56x45 NATO is a 14.5-inch barrel conversion system for shooters looking to reconfigure their AUG platform rifle. Built for the A3M1 receiver, this kit lets you swap caliber capability or barrel length without sourcing parts from multiple suppliers—everything you need comes together in one package. Whether you're a competition shooter, range trainer, or tactical enthusiast, a dedicated conversion kit streamlines the process and keeps your rifle modular without the guesswork.

Heresy Design Inc. has engineered this conversion kit to work specifically with A3M1-compatible receivers, maintaining the reliability and ergonomics that AUG users depend on. The 14.5-inch barrel strikes a balance for shooters who want a shorter setup than full-length rifle configurations but still need effective range and velocity for 5.56x45 NATO ammunition. Black finish protects against corrosion and blends seamlessly with modern rifle aesthetics.

Conversion kits like this one appeal to AUG owners who already have a primary receiver and want to add capability without buying an entirely new rifle. Installation and compatibility should always be verified against your specific receiver before ordering, but this kit is designed to simplify the transition process for A3M1 platform users.

Specifications

Frequently Asked Questions

What AUG receivers is this conversion kit compatible with?

This kit is designed for AUG A3M1 receivers. Verify compatibility with your specific receiver before purchasing.

What is included in the conversion kit?

The kit includes a 14.5-inch barrel in 5.56x45 NATO. Verify what additional components are included with your purchase.

Can I use standard 5.56 NATO ammunition with this barrel?

Yes, the barrel is chambered in 5.56x45 NATO, which accepts standard 5.56 NATO ammunition.