Description
MPN: 57BBCF0-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: 5" 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: ~2.5 lbs.
- Length: ~13.8"
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 5" Complete Upper
- 1x CMMG Mk57 5.7x28mm Bolt Carrier Group
- 1x CMMG ZEROED AR15 Ambi Charging Handle
Details: