The Griffin Armament Micro Carry Comp was engineered for concealed carriers who want measurable muzzle control without adding bulk or weight. It adds only a few tenths of an inch beyond a standard thread protector, making it compatible with most carry holsters that leave a small muzzle overhang, while the close-dimensioned 17-4 stainless baffle face still redirects enough gas to reduce muzzle climb on fast strings. Specs & features: Thread pitch: 13.5x1 LH (European 9mm - CZ, HK, Sig, some Walther) 17-4 stainless steel construction Black nitride finish Patent-pending baffle design Adds only a few tenths of an inch over a bare thread protector Compatibility: Fits any 9mm barrel with 13.5x1 LH (left-hand) muzzle threads - verify pitch before ordering, since this is a NON-standard thread for domestic 9mm platforms (Glock uses 1/2x28). Common on CZ, HK, Sig, and select Walther pistols. Torque with a proper wrench and blue thread-locker; give the comp a short break-in so the baffle fully clears before duty or match use. STATE RESTRICTION NOTICE This product may be regulated as an "assault weapon" feature or component (e.g., threaded barrel, muzzle device/compensator, or assembled upper) and may be restricted or prohibited in CA, CT, DC, HI, IL, MA, MD, NJ, NY, RI, VA, WA, and select municipalities. It is the buyer's responsibility to verify local, state, and federal laws before purchase. Orders that cannot ship to a restricted address will be canceled and refunded.