Dead Air – Thread Spacer 1/2x28 Black (DA423)

The Dead Air 1/2x28 Thread Spacer (DA423) ensures proper suppressor fitment on firearms with longer-than-standard barrel threads, providing the correct blast chamber space for rimfire suppressor performance and longevity.

Standard rimfire muzzle threads typically measure around 0.4”. When threads extend beyond that, suppressors may seat too deeply, leading to reduced performance and potential baffle erosion. This precision-machined spacer solves the problem by restoring the proper stand-off distance.

Designed with internal threading, the spacer remains securely attached to the barrel even when the suppressor is removed—ideal for shooters who frequently swap suppressors or alternate between suppressed and unsuppressed use.

Features:

• Designed for barrels with thread lengths longer than 0.4"
• Ensures proper blast chamber spacing for rimfire suppressors
• Reduces risk of baffle erosion and performance loss
• Internal threads keep spacer affixed when suppressor is removed
• Durable black finish for corrosion resistance

Specifications:

• Thread Size: 1/2x28
• Color: Black
• Type: Thread Spacer
• Subcategory: Muzzle Devices
• Manufacturer Part Number: DA423
• UPC: 810128161275

Ideal for rimfire setups requiring precise suppressor spacing—keep your gear protected and your suppressor running at peak performance.