CMMG 90B3BF0 Upper Group 9mm 8.5" 4140 Chrome Moly Steel Medium Taper Black Brl Finish
Type: Complete Gas Impingement
Caliber: 9mm
Sights: None, Optic Ready
Barrel Length: 8.5"
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: 12.99" and Below
Manufacturer: CMMG
Mfg Number: 90B3BF0
Model: Upper Group
Series: MK9 PDW
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