b'DUAL-LOKDUAL-LOK 5LENGTH.6.5 DB REDUCT.33db 5.56mmWEIGHT.11.8oz MATERIAL.H900 & Cerakoted 17-4SS & 718 InconelDIAMETER1.5 MSRP$1,045CALIBER5.56mm RATED FOR.Up to .22-250 REMSuppressors offering active retention systems are often times demanded by government customers and Griffin has spent considerable research and development efforts to engineer and manufacture a next generation system in this category. A quality mounting system should be accurate, robust, reliable, require minimal training, and be free of wear prone metal on metal teeth'