TM- CHECKMATE II Sound Suppressor

WARNING: FAILURE TO READ AND UNDERSTAND THIS MANUAL

PRIOR TO USE MAY RESULT IN INJURY OR DAMAGE TO PROPERTY

Griffin Armament / Hearing Protection LLC.

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Disassembly: The 7mm hex protruding from the Checkmate Multi-tool can be used for removal of the front cap, but should not be used for re-assembly. Installing with torque, using the tool can result in stuck components or damage to the tool or front cap upon disassembly at a later time. The spanner pins engage recesses on the rear cap for disassembly. Description of Checkmate II Multi-Tool features:

If you so desire your Checkmate II can be upgraded to QD for a

nominal fee in the future. The Checkmate II sound suppressor is a multi-caliber, modular rimfire suppressor.

WWW.GRIFFINARMAMENT.COM

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Caliber / Barrel length compatibility: This silencer is rated for .22lr in all barrel lengths, water and light oil coolant such as [WD-40, CLP, & Rem Oil] can be used if desired to temporarily attain slightly higher sound reduction, but grease should not be used as it can fill the blast chamber and create over-pressure situations. This silencer is also rated for .22WMR, and .17HMR in 18 inch or longer barrels. Coolant Should not be used with magnum rimfire ammunition. Dangerous over-pressure situations could result. Cleaning: Non allergenic surgical type gloves, a respirator, and a disposable cleaning surface are recommended for basic service. For disassembly instructions, refer to page 4. The entire cleaning procedure should take less than ten minutes. Basic service every 250 rounds is as follows: Wire brush suppressor bore with 7mm brass brush to remove any deposited lead in the bore; loosen and remove the front cap, push the baffle module out the muzzle end of the silencer with a ballpoint pen. The tube and spacers can be cleaned with a brass shotgun bore brush or cotton shotgun bore mop. The front threads of tube and front cap threads should be cleaned with a toothbush dedicated to this sole purpose, or with an all purpose nylon brush from a weapons cleaning kit. Remove carbon from parts with a brass brush or cleaning pick. Re-assemble according to schematic on the front page. High temperature Anti-seize, or a light coat of WD-40 can be used on the parts and inside of the tube, if desired. Upon re-assembly, the oil will continue to loosen remaining carbon, and the suppressor will also benefit from slightly improved sound reduction for the first 40-60 rounds fired upon your next use of the suppressor.

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Thankyou for your purchase and support of Hearing Protection LLC! WARNING: Silenced weapons need to be treated according to the safety guidelines of the host weapon instruction manual. Quiet does not mean “harmless”. Reduction of noise is not reduction of potential lethality, these items do not go hand in hand. Safety Considerations! Unload your weapon in accordance with its manufacturer’s user manual prior to mounting the sound suppressor. Remove the bolt or bolt carrier group and charging handle from the weapon prior to inspection of the mounting alignment. Confirm Alignment! Visually confirm alignment on every untested weapon prior to first use by placing white paper in the breach, and looking through the suppressor bore, parallel to the walls of the barrel bore on all sides, comparing clearance to elements of the suppressor bore. If alignment does not appear to be right, or if you desire the most minimal POI shift and maximum safety from baffle strikes or other issues, send your barrel to ADCO firearms in Ohio for barrel threading. www.adcofirearms.com Mounting: The stainless rear cap should be tightly threaded by hand to the Checkmate II tube when in use, as it puts the assembly in alignment. The rear cap needs to be tightly threaded to the 1/2x28 UNF host barrel during use. Periodically check tightening the thread mount Checkmate II during operation is recommended.

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