b'RECCE 5K*EZ Brake mount includedLENGTH.5.8 DB SPL137.7dB 14.5, 140dB 11.5 5.56mmWEIGHT.13.7oz MATERIAL.H900 & Nitrided 17-4SSDIAMETER1.5 MSRP$653CALIBER5.56mm RATED FOR.22 calibers up to 220 swiftThe Recce 5K is fully CNC machined, and laser-welded from 17-4 stainless steel for maximum thermal transfer and unparalleled strength and durability. 17-4 stainless is also twice as strong as cast Stellite 6, used by some industry companies. The included EZ-Brake makes the Recce 5K ready for use right out of the box. Simply mount your muzzle device, attach the suppressor, and youre ready to hit the range.'