Heresy Design is a manufacturer of firearm parts and accessories.
Our products include conversion kits for the Steyr AUG, the Vendetta Chassis for the R***r style 10/22, and the Silencer Timing Device.
06/18/2026
The easiest suppressor to clean is the one you'll actually maintain.
The Resonance was designed to simplify ownership while delivering the performance shooters expect from a dedicated rimfire suppressor.
Available now at HD.
*No REGULATED goods for sale via FB or IG
If a rimfire can is hard to clean, it eventually stops doing its job. The Resonance was designed to come apart easily. The monocore makes it a breeze.
The Resonance Silencer with 22 subs is quieter than the dang wind.
06/01/2026
Small tolerances matter when dealing with muzzle alignment.
The STD is precision machined to provide a clean interface between the barrel and muzzle device for more repeatable installation.
05/29/2026
A quick update for the AUG® crowd.
We’ve added more 9MM AUG® configuration options to the current Heresy lineup, including support for both Standard Stock and NATO Stock setups.
Compatible 9MM magazine options are listed on the site as well.
Details are available at Heresy Design.
No REGULATED goods for sale via FB or IG
#
Barrel, gas system, and lock-up matter most. Our conversion kits focus on the parts that actually affect performance.
📸
No REGULATED goods for sale via FB or IG
05/19/2026
Subsonic capable. Suppressor tuned. Built around a 3-position gas system to reduce blowback and piston pop, our conversion kits will get you rolling with 300 BLK in under 60 seconds.
📸
05/12/2026
Carbon and lead buildup are unavoidable, which is why serviceability matters in a rimfire suppressor design.
The Resonance uses a removable monocore that can be accessed quickly for routine cleaning and maintenance.
05/08/2026
The AUG® platform still does something most modern rifles struggle with.
Compact overall size without giving up barrel length.
That balance is why the platform has stayed relevant for decades, and why modular upgrades matter.
Heresy conversion systems and accessories are built to expand capability while keeping the platform true to what makes it work.
No REGULATED goods for sale via FB or IG
📸
04/30/2026
More Capability. Same Platform. Caliber flexibility without re-zero headaches or gunsmithing. Swap and keep shooting. Heresy Conversion Kits FTW.