Silencer Co Delta Adapter | FN Five-seveN to 1/2×28

The Silencer Co Delta Adapter converts FN Five-seveN M10x1 muzzle threads to a 1/2×28 pattern, providing O-ring engagement to help keep muzzle threads clean and to reduce loosening during use. It is made from steel with a black finish and ships with a thread protector. The adapter is compatible with SilencerCo rimfire suppressors threaded 1/2×28 and is intended for use where a thread-pitch conversion is required.

Typical applications include range and target shooting where a pistol needs to use 1/2×28-threaded rimfire suppressors, and compatibility conversion for collectors or gunsmiths working with FN Five-seveN pistols. This product is not for use in ways prohibited by applicable law.

Product Specifications

• The manufacturer is Silencer Co.
• The model is Delta.
• The adapter is finished in Black.
• The material is Steel.
• The product type is Silencer Adapter.
• The adapter converts to an external thread pitch of 1/2×28.
• The adapter is sized for FN Five-SeveN (M10 x 1) to 1/2×28 conversion.
• The listed caliber/gauge is 5.7 x 28 mm.
• The package includes a thread protector.
• The series is listed as Adapter.
• The listed weight is 0.10 lbs.
• The product includes O-ring engagement to help retain a secure fit.
• The UPC is 817272010046.

The Delta Adapter is a compact, purpose-built solution for converting FN Five-seveN muzzle threads to a common 1/2×28 pattern, using O-ring engagement and a protective thread cap to preserve the firearm’s threads and maintain a consistent interface with 1/2×28 rimfire suppressors. Its steel construction and black finish make it a durable option for shooters and technicians who need a straightforward thread-pitch conversion.