Caliber/Gauge
4.6x30mm
Barrel Length
8"
Action
Semi
Front Sight
None
Rear Sight
None
Color
Black
Finish
Cerakote
Material
Aluminum
Handed
Right
With an impressive 40-round magazine capacity, light recoil, and great penetration at close distances, the CMMG® FourSix is here to reimagine the Personal Defense Weapon. Not only is the FourSix the first AR chambered in 4.6x30mm, but it is also the first 4.6x30mm firearm ever released to the U.S. civilian market!
Platform Mk4
Caliber 4.6x30mm
Operating System Direct Impingement
Barrel Length 8
Barrel Twist 1:5.9
Barrel Contour MT
Barrel Material 4140CM, SBN
Barrel Twist 1:5.9
Muzzle Device CMMG ZEROED Linear Comp
Muzzle Thread 1/2 X 28
Gas Port Location Micro
Gas Block FOURSIXTM Specific .750
Upper Receiver Billet 6061 T6 Aluminum
Lower Receiver Mk4 Forged 7075 T6 Aluminum
Hand Guard CMMG EML7 M-LOK
Finish Cerakote Standard
Charging Handle CMMG ZEROED Ambi
Pistol Grip CMMG ZEROED Pistol Grip
Buffer Type Carbine
Receiver Extension CMMG 6 Position Fastback Extension
Stock / Brace CMMG RipBrace
Trigger Type ZEROED Drop-In Single Stage
Trigger Guard CMMG ZEROED Trigger Guard
Safety Selector CMMG ZEROED 60/90 Degree
Magazine CMMG 40rd
Weight 4.3 lbs
Length 23.7"
Platform Mk4
Caliber 4.6x30mm
Operating System Direct Impingement
Barrel Length 8
Barrel Twist 1:5.9
Barrel Contour MT
Barrel Material 4140CM, SBN
Barrel Twist 1:5.9
Muzzle Device CMMG ZEROED Linear Comp
Muzzle Thread 1/2 X 28
Gas Port Location Micro
Gas Block FOURSIXTM Specific .750
Upper Receiver Billet 6061 T6 Aluminum
Lower Receiver Mk4 Forged 7075 T6 Aluminum
Hand Guard CMMG EML7 M-LOK
Finish Cerakote Standard
Charging Handle CMMG ZEROED Ambi
Pistol Grip CMMG ZEROED Pistol Grip
Buffer Type Carbine
Receiver Extension CMMG 6 Position Fastback Extension
Stock / Brace CMMG RipBrace
Trigger Type ZEROED Drop-In Single Stage
Trigger Guard CMMG ZEROED Trigger Guard
Safety Selector CMMG ZEROED 60/90 Degree
Magazine CMMG 40rd
Weight 4.3 lbs
Length 23.7"
