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RESONANCE .22
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10/22® FIXED BARREL AND TAKEDOWN CHASSIS

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STEYR® AUG® COMPATIBLE CONVERSION KITS

WHAT ARE CUSTOMERS SAYING

Joseph a Sharp
Joseph S.
Verified ownerVerified owner
5/5

An amazing product. It aligned perfectly. Such a time saver!

3 days ago
Reviewer received a reward for submitting an honest review.
Joseph a Sharp
Joseph S.
Verified ownerVerified owner
5/5

An amazing product. It aligned perfectly. Such a time saver!

3 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!

1 week 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!

1 week 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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2 weeks ago
Reviewer received a reward for submitting an honest review.

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.