{"product_id":"griffin-piston-bbl-adapter-13-5x1lh","title":"Griffin Armament Piston Barrel Adapter 13.5x1 LH – Universal Suppressor Mounting","description":"\u003cp\u003eThe Griffin Armament Piston Barrel Adapter provides a secure mounting interface between pistol barrels with 13.5x1 left-hand threads and Griffin's piston-based suppressor systems. This adapter allows shooters to use Griffin suppressors on firearms with non-standard thread pitches, expanding compatibility across multiple platforms without barrel replacement.\u003c\/p\u003e\u003cp\u003ePrecision-machined from heat-treated steel with a durable black finish, this adapter threads directly onto compatible barrels and accepts Griffin pistons for quick suppressor attachment and removal. The 13.5x1 LH thread pitch is commonly found on certain imported and European pistol barrels. Installation requires proper torque and thread engagement—verify barrel thread specifications before ordering. Note: Suppressors require ATF Form 4 approval and compliance with all federal, state, and local NFA regulations.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Piston barrel adapter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Pitch:\u003c\/strong\u003e 13.5x1 left-hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heat-treated steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Griffin Armament piston-mount suppressors, pistol barrels with 13.5x1 LH threads\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Griffin Armament","offers":[{"title":"Default Title","offer_id":47940711776511,"sku":"GRIFPI1351LH","price":55.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/1465747.jpg?v=1766566406","url":"https:\/\/doublestackstore.com\/products\/griffin-piston-bbl-adapter-13-5x1lh","provider":"Double Stack Store","version":"1.0","type":"link"}