The Kaw Valley Precision Gen 2 Suppressor Piston in M13.5×1 LH is the left-hand metric version of its stainless steel booster piston in the BPISTIN pattern (brand part no. KVPPISTON1805). Kaw Valley Precision machines it in a single Swiss CNC setup to minimize tolerance stack-up, then black nitride treats it for durability and wear resistance. Left-hand threads are easy to confuse with right-hand ones, so confirm the LH marking on your suppressor before ordering. It works as a replacement or upgrade piston for owners of supported suppressors.

Key Specifications

• The thread is M13.5×1 LH, the thread size this version of the Gen 2 piston is cut with.
• The pattern is BPISTIN, short for Booster Piston Industry Standard Ten Index Notch.
• The material is stainless steel, a durable base for a part that cycles with every shot.
• The finish is black nitride, which improves durability and wear resistance.
• It is machined in a single Swiss CNC setup, which minimizes tolerance stack-up compared with multi-machine production.
• It is listed for the Dead Air Odessa, Griffin Revolution, Silencer Co Hybrid, Octane, Omega K and Omega 36M, YHM Booster Assembly and ECCO Machine Phoenix pistol cans and booster assemblies.

Frequently Asked Questions

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

Which suppressors can use it? Kaw Valley lists the Dead Air Odessa, Griffin Revolution (Resistance, Optimus 9 and Bushwacker), Silencer Co Hybrid, Octane, Omega K and Omega 36M, the YHM Booster Assembly, and ECCO Machine Phoenix pistol cans and booster assemblies.

What thread is this piston? This one is the M13.5×1 LH version; Kaw Valley also makes this Gen 2 piston in 1/2×28, 1/2×36, 5/8×24, .578×28, 9/16×24 and M13.5×1 LH.

Buy the Kaw Valley Precision Gen 2 Suppressor Piston, M13.5×1 LH

Order it from our Lubbock, Texas gun shop for fast, insured shipping, and browse more Class 3 parts and accessories while you are here.