Dead Air P-Series Piston | 1/2×28 | DA401

The Dead Air P-Series Piston (DA401) is a threaded rear piston designed to expand the compatibility of Ghost-M series silencers by converting the rear thread to 1/2×28. It is precision machined and finished in black Cerakote for corrosion resistance and a low-reflective appearance. Intended for users who need quick, reliable piston swaps to adapt a single suppressor to multiple host pistols.

Common applications include range use where multiple threaded pistols are employed and competitive pistol shooting where fast thread conversion improves efficiency. This piston is designed for use with the P-Series Booster Assembly and spring as specified by the manufacturer.

Product Specifications

• The thread pattern is 1/2-28 tpi.
• The product type is listed as a Barrel Adapter.
• The size is specified as 1/2×28.
• The model family is P-Series.
• The finish is Black Cerakote.
• The subcategory is Suppressor Accessories.
• The color is Black.
• The series designation is Piston.
• The NFA thread pattern is 1/2×28.
• The listed threads value is 1/2-28.
• The package length is 6.0 (unit as provided in source data).
• The package width is 4.5 (unit as provided in source data).
• The package height is 1.0 (unit as provided in source data).
• The weight is 0.1 (unit as provided in source data).
• The UPC is 810128161053.

The P-Series piston provides a straightforward, field-serviceable way to adapt a Ghost-M style suppressor to hosts using 1/2×28 rear threads. Its machined surfaces and Cerakote finish make it suitable for frequent swap use on the range or in competitive environments where thread compatibility is required across multiple pistols.