LanTac M-SPEC556S Features The LanTac M-SPEC556S is built from 17-4 stainless steel in H900 condition a material and heat treatment combination chosen specifically to resist corrosion while standing up to the stress of repeated firing. Its tubeless baffle design is fully welded using a 360 degree full-penetration laser weld a manufacturing approach that reduces thermal stress and distortion compared to traditional construction methods. This results in a larger internal baffle volume for improved noise suppression without increasing the suppressor s external footprint. At just 6.0 inches long and 13.5 oz without its mount the M-SPEC556S keeps added weight and length on a host rifle to a manageable minimum. The suppressor comes standard with a 1/2x28 direct thread HUB adapter which can be installed or removed using a standard armorer s wrench barrel nut tool and swapped for any mounting system built to the 1.375x24 TPI standard. This modularity lets shooters move the can between different threaded barrels and mounting setups as their needs change. Rated for full-auto fire with adequate cooling between magazines the M-SPEC556S is built to handle sustained use that would overwhelm a lighter-duty suppressor. Tested to 130dB under MIL-STD-1474E and backed by a manufacturer s warranty against defects this is a suppressor built for shooters who put their 5.56 rifles through serious volume of fire. LanTac M-SPEC556S Specifications Manufacturer: LanTac Model: M-SPEC556S Caliber: 5.56 / .223 Rem Material: 17-4 Stainless Steel Color: Black Finish: Matte Mount Type: Direct Thread Thread Pattern: 1/2x28 Length: 6 Diameter: 1.677 Base / 1.610 Body Rating: Full-Auto Weight: 13.5 oz Available At: GrabAGun