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ACCESSORIES

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SILENCERS

RESONANCE .22
MONOCORE SILENCER

VENDETTA™ CHASSIS

10/22® FIXED BARREL AND TAKEDOWN CHASSIS

CONVERSION KITS

STEYR® AUG® COMPATIBLE CONVERSION KITS

WHAT ARE CUSTOMERS SAYING

natemoen
Nathan
Verified ownerVerified owner
5/5

Super easy to use and much better than spacer washers!

2 days ago
Reviewer received a reward for submitting an honest review.
natemoen
Nathan
Verified ownerVerified owner
5/5

Super easy to use and much better than spacer washers!

2 days ago
Reviewer received a reward for submitting an honest review.
Tim Lau
Tim L.
Verified ownerVerified owner
5/5
After fiddling with shims as an armorer for two decades, I came across these via Instagram. I immediately ordered three and where have you been all my life? I am sharing STDs with ...
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4 days ago
Reviewer received a reward for submitting an honest review.
Daniel
Daniel
Reviewer
5/5
Im very pleased with this barrel. I used Bonefrog 77 gr Barnes match burner bullets with a primary arms raptor 1-8 LPVO and was able to shoot multiple 1 inch groups at 100 yards wi...
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3 months ago
Mark C
Mark C
Reviewer
5/5
Fantastic way for adding a second caliber, these 300 barrels are great for running suppressed. Mine runs 100% with my hand loaded subsonic rounds, and any supersonic ammo. My e...
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8 months ago

SHOP BY STDS

1/2 Heresy STD

1/2" STD

For 1/2"-28 threaded barrels. A simple, low-profile way to time your muzzle device exactly where you want it.

Heresy Design STDS

Shop All STDs

Not sure which one you need? Browse the full Silencer Timing Device lineup and find the right fit for your setup.

5/8 Heresy Design STD

5/8" STD

Built for 5/8"-24 threaded barrels. Clean timing without stacking crush washers or fighting alignment.