The Dead Air Thread Spacer in 1/2-28 is made for rimfire barrels whose threads are longer than the standard 0.4 inch (brand part no. DA423). Dead Air Silencers designed it so a rimfire suppressor keeps the proper blast chamber space it needs for optimal performance and reduced baffle erosion. The spacer has threads inside, so it stays on the barrel when the suppressor is off the gun. It is a small part with a clear job, used with the Mask.

Key Specifications

• The thread size is 1/2-28, the common rimfire suppressor thread.
• It is meant for barrel threads longer than the standard 0.4 inch, where the suppressor would otherwise sit too far back.
• It has internal threads, so it remains affixed to the barrel when the suppressor is not in use.
• It is intended for rimfire suppressors, used with the Mask.

Frequently Asked Questions

When do I need the thread spacer? Use it when your barrel threads are longer than the standard 0.4 inch, so the suppressor keeps the blast chamber space it needs.

Does the spacer stay on the barrel? Yes. It incorporates threads inside, which keeps it affixed to the barrel when the suppressor is off.

Buy the Dead Air Thread Spacer, 1/2-28 Rimfire

A spacer fixes a common rimfire fitment problem, and this one is for 1/2-28 barrels with long threads. Order it from our Lubbock, Texas gun shop for fast, direct shipping, and browse more Class 3 parts and accessories while you are here.