The Kaw Valley Precision Gen 2 Suppressor Piston in 1/2×28 (Kaw Valley Precision part no. KVPPISTON1800) is a stainless steel booster piston for several suppressor platforms. It is machined in a single Swiss CNC setup, which keeps tolerances tight by avoiding the stack-up of multi-machine production. The pistons are Black Nitride treated for durability and wear resistance. This is the 1/2×28 version, for muzzles and muzzle devices threaded that size.

Key Specifications

• The thread is 1/2×28, the version of the Gen 2 piston Kaw Valley lists as 1800.
• The material is stainless steel, chosen for strength in a moving part.
• The surface treatment is Black Nitride, which improves durability and wear resistance.
• The pistons are machined in a single Swiss CNC setup, which minimizes tolerance stack-up.
• The design follows the BPISTIN pattern, short for Booster Piston, Industry Standard Ten Index Notch.

Frequently Asked Questions

Which suppressors can use the Gen 2 piston? Kaw Valley lists Dead Air Odessa, Griffin Revolution models (Resistance, Optimus 9 and Bushwacker), SilencerCo Hybrid, Octane, Omega K and Omega 36M, YHM booster assemblies, and ECCO Machine Phoenix pistol cans and booster assemblies.

Does it need maintenance? Kaw Valley recommends periodic lubrication of the piston and o-rings to keep the booster assembly operating smoothly.

What other threads does the Gen 2 piston come in? 1/2×36, 5/8×24, .578×28, 9/16×24 and M13.5×1 LH, in addition to the 1/2×28 version here.

Buy the Kaw Valley Precision Gen 2 Suppressor Piston, 1/2×28

A piston that matches both the thread and the suppressor is what keeps a booster system reliable. Order it from our Lubbock, Texas gun shop for fast direct shipping, and see more Class 3 parts and accessories.