CMMG Mk4 .300BLK Banshee Upper Group Receiver

300BLK has proven itself to be an incredibly capable round in a variety of applications, from close quarters to mid-range and ammo loadings optimized for subsonic/suppressed as well as supersonic, there is use for almost every need. Whether youre looking to swap your current AR15 upper to quickly switch to 300BLK or looking to top off a new build, this 8 BANSHEE upper group is sure to satisfy anyone looking for one of the most compact and stylish 300BLK upper groups made today. Specifications for CMMG Mk4 .300BLK Banshee Upper Group Receiver: Manufacturer: CMMG Cartridge: .300 AAC Blackout Barrel Profile: Medium Tapered Barrel Twist Rate: 1-7 Threads per Inch: 5/8×24 Fabric/Material: 6061 T6 Aluminum Gun Rail: M-LOK Gun Make: CMMG Gun Model: CMMG Mk4 Magazine Included: No Mount Type: M-LOK Package Contents: CMMG Mk4 .300BLK Banshee Upper Group Receiver