Caliber: Multiple - Weight: 16 oz - Length: 7.5 in - Mount: Multiple - Sound Reduction: 32 dB - Diameter: 1.5 in - Materials: Titanium / Inconel - Finish: High-Temp. Cerakote - NOMAD-Multi-Cal is set up with everything you need to suppress shots from 22 caliber all the way to 300 WIN MAG. - Packing includes the following: (1) multi caliber suppressor direct thread attachments (1) 1/2 - 28 thread insert and (1) 5/8 - 24 thread insert quick attach flash hiders for (1) 5.56mm and (1) 7.62NATO (1) assembly/disassembly tool. - For barrels: 24� minimum length 300WM 12.5� minimum length 7.62x51/.308 WIN 7.5� minimum length 5.56x45/223 7.5� minimum length 300 BLK.