MPN: 57B88BD-AB

Features:

• Radial Delayed Blowback System - softer recoil impulse and reduced bolt weight
• Caliber: 5.7x28mm
• Finish: Armor Black Cerakote
• Upper Receiver: CMMG Mk4 Upper Receiver - 6061-T6 Aluminum
• Handguard: 4-Inch CMMG EML4 M-LOK Handguard
• Muzzle Device: CMMG ZEROED Linear Compensator
• Barrel: 8" 1:9 Salt Bath Nitrided 4140 Chrome Moly Steel
• Muzzle Thread Pattern: 1/2-28
• Bolt Carrier Group: CMMG Mk57 5.7x28mm Bolt Carrier Group
• Charging Handle: CMMG ZEROED AR15 Ambi Charging Handle
• HP and MPI Tested

*This upper receiver assembly has a barrel that is shorter than 16". This upper is only for use on AR pistol lower receivers and NFA registered Short-Barreled Rifle (SBR) lower receivers. All NFA laws apply!

Specifications:

• Weight: ~2.9 lbs.
• Length: ~16.5"

Compatibility:

• CMMG Mk57 lower receivers
• CMMG Mk4 or standard AR-15 lower receivers (when used with 5.7 AR Conversion Mags)
• FN®* Five-seveN®* pattern magazines

Includes:

• 1x CMMG Banshee 5.7x28mm 8" Complete Upper
• 1x CMMG Mk57 5.7x28mm Bolt Carrier Group
• 1x CMMG ZEROED AR15 Ambi Charging Handle

Details: