Dead Air Thread Spacer 1/2x28
The Dead Air Thread Spacer 1/2x28 is a precision-machined adapter that solves a common suppressor setup challenge: achieving the correct blast chamber spacing on rimfire cans when your barrel threads run deeper than standard. If you've got a longer-threaded barrel and a rimfire suppressor that needs that extra clearance to breathe and function as designed, this spacer bridges the gap. It threads directly onto your barrel and accepts your suppressor on top, giving your rimfire can the blast chamber room it needs to do its job without running interference with your barrel extension.
Built with internal threads, this adapter stays put on your barrel between shooting sessions—no loose parts rolling around in your range bag. Dead Air's precision machining means it seats consistently and reliably, shot after shot. It's a no-fuss solution for shooters running non-standard barrel configurations who want their suppressor to perform at its best and last longer. Whether you're setting up a custom rimfire build or retrofitting an existing rifle, this spacer handles the thread-spacing problem cleanly.
Designed specifically for 1/2x28 threaded barrels, it's the kind of understated part that makes the difference between a suppressor that runs hot and one that runs cool. Get the spacing right, and your baffles stay cleaner longer.
Key Features
- Precision-machined construction for reliable, consistent fit
- Internal threads keep the adapter affixed to your barrel when suppressor is removed
- Designed for 1/2x28 threaded barrels
- Provides necessary blast chamber clearance for rimfire suppressors on longer-threaded barrels
- Reduces baffle erosion by allowing suppressors to function at optimal spacing
Specifications
| Thread Size | 1/2x28 |
| Brand | Dead Air Armament |
| Category | Muzzle Device / Suppressor Adapter |
Frequently Asked Questions
What barrels is this spacer designed for?
The Dead Air Thread Spacer 1/2x28 is designed for barrels with 1/2x28 threads that are longer than the standard 0.4" depth. If your barrel threads extend beyond normal specifications, this spacer provides the extra clearance your rimfire suppressor needs.
Will this spacer stay on my barrel when the suppressor is off?
Yes. The spacer incorporates internal threads that keep it affixed to your barrel, so it won't come loose or get lost between shooting sessions.
What problem does this spacer solve?
When a barrel's threads are deeper than standard, a rimfire suppressor may not have adequate blast chamber space for optimal performance. This spacer creates that clearance, allowing your suppressor to function as designed while reducing baffle erosion and heat buildup.
What type of suppressors does this work with?
This spacer is designed for rimfire suppressors. It threads onto 1/2x28 barrels and accepts your suppressor on top, adjusting the overall spacing to match your setup's requirements.

