CMMG 90B3BF0 Upper Group 9mm Luger 8.50 in Black Barrel, Black Receiver Free-Floating Handguard for MK9

The MK9 Upper Receiver Assembly features a free-float handguard, medium taper 4140 chrome moly barrel, and overall black finish.

Type : Complete
Caliber : 9mm Luger
Sights : None, Optic Ready
Barrel Length : 8.50"
Barrel Material : 4140 Chrome Moly Steel
Twist : 1:10"
Barrel Description : Medium Taper
Barrel Finish : Black
Receiver Description : 7075-T6 Aluminum M4
Receiver Finish : Black
Handguards : Free-Floating
Handguard Finish : Black
Barrel Length Range : 10" to 10.99"