The Strategic Sciences MFMD .300 4.0 MD Suppressor with SDX Long Extension in Flat Dark Earth delivers exceptional versatility and maximum sound suppression performance in a modular package with a distinctive FDE finish that complements a wide range of rifle configurations. Featuring the MD suppressor body with the SDX Long extension included, this configuration provides shooters with two length options optimized for precision and long-range builds where maximum sound reduction is the primary objective. Compatible with all calibers up to .300, the MFMD 4.0 MD is constructed from premium titanium and stainless steel components for an outstanding balance of durability, corrosion resistance, and lightweight performance. The 5/8x24 direct thread mount provides a secure, rock-solid attachment to any compatible host rifle, and the modular design allows for quick, tool-free configuration changes in the field. Please note this is an NFA regulated item requiring a tax stamp and compliance with all applicable federal, state, and local regulations prior to purchase and possession. Strategic Sciences MFMD .300 (Magnum Caliber Optimized) 4.1" OTB 5/8x24 Direct Thread FDE Muzzle Device & SD MFMD-.300-4.0-MDSD-5/8X24-FDE