With the introduction of the Revolution series of silencers the modular pistol can concept has gone viral throughout the industry. The modular concept is desirable but this feature drives up the price of pistol silencers for many users who do not need or use this feature. Deleting the modular feature of the Revolution allows us to pass the savings to the customer while still providing a high performance high quality silencer second to none. While the Revolution series will continue to be our flagship pistol silencers the Resistance cans offer a premium traditional pistol silencer offering. - Resistance silencers are user serviceable ensuring long high performance service life. The front caps can be interchanged on the Resistance 9 for the smaller .22 caliber front cap. 17-4 stainless heat treated baffles with anti-rotation features ensure maximum strength and sound performance. The booster assembly includes a piston for a turnkey suppressor system out of the box. Included take down tools allow for an easy and satisfying end user maintenance experience. Additional pistons fixed barrel spacers an integral 3 lug adapter and fixed direct thread mounts are available to support the Resistance in any configuration the end user could desire. High quality industry leading performance strength high feature functionality build quality and price make the Resistance silencers an unbeatable value in the fixed length silencer class. - The Resistance 9 is shipped with an included 1/2x28 booster piston. However the user can swap out the included piston with other pistons. Additionally our integral 3 lug 9mm QD assembly can be interfaced if desired to run on 9mm MP5's AR carbines or any 9mm wearing a standard 3 lug coupler. This silencer is also rated for 300 BLK Subsonic with use of the Revolution Fixed barrel spacer (available separately). - INCLUDES: - 1/2x28 PISTON - Griffin Armorers Wrench - Griffin Hex Tool - Diameter: 1.375