Dead Air Mask HD Thread Adapter | Sig Mosquito to 1/2-28 | DA420

The Dead Air Mask HD thread adapter provides mechanical compatibility between the Mask-HD family of silencers and Sig Mosquito rimfire hosts, enabling rapid transition between platforms. It is a purpose-built accessory intended to expand mounting options for rimfire suppressors. This adapter supports common 1/2-28 thread interfaces and is finished to match typical suppressor hardware. Use cases include range-based rimfire training and rimfire target/practice sessions where transitioning a suppressor between hosts is desired.

Product Specifications

• The manufacturer is Dead Air Silencers.
• The manufacturer part number is DA420.
• The product type is listed as Accessory-Silencer Accessories.
• This adapter is intended for use with Sig Mosquito hosts as noted.
• The Threads are specified as 1/2-28.
• The NFA Thread Pattern is 1/2×28.
• The finish on the adapter is Black.
• The listed weight is 0.02.
• The listed height is 0.5.
• The listed length is 7.
• The listed width is 4.
• The adapter “Can be disassembled” is listed as False.
• The attribute “Drilled and Tapped” is listed as False.
• The UPC for this product is 810128161244.

This adapter is a straightforward solution for shooters who need to move a Mask-HD suppressor between compatible rimfire hosts without altering the host or suppressor. It focuses on mechanical fit and finish and is suitable for routine range and training use where quick, reliable mounting is required.