Skip to main content.
0 Item In Your Cart
Qty. Item Price
Cart Total $0.00

Continue Shopping

PRODUCT #54F1885 UPPER GROUP KIT, BANSHEE™ 300, MK57, 5.7 X 28MM, 3 10RD MAGS

$799.95

$799.95

THIS PRODUCT IS BACKED BY THE CMMG LIFETIME QUALITY GUARANTEE.

UPPER GROUP KIT, BANSHEE™ 300, MK57, 5.7 X 28MM, 3 10RD MAGS

The BANSHEE 300 5.7x28mm upper receiver has a 5-inch barrel and features CMMG’s patented Radial Delayed Blowback operating system. The receiver and handguard are hard coat anodized, and come with a pre-installed CMMG Ambi Charging Handle, and a CMMG RML4 M-LOK Handguard. This package ships with three 10-round 5.7 AR Conversion magazines.

All of our Upper Groups come complete with BCG.
All Products come with CMMG’s Lifetime Quality Guarantee. ALL NFA RULES APPLY.

Technical Specifications

Platform Mk57
Caliber 5.7x28mm, 5.7x28mm (Conversion)
Operating System Radial Delayed Blowback
Barrel Length 5
Barrel Twist 1:9
Barrel Contour MT
Barrel Material 416SS, SBN
Barrel Twist 1:9
Muzzle Device Thread Protector
Muzzle Thread 1/2 X 28
Gas Port Location N/A
Gas Block N/A
Upper Receiver Forged 7075-T6 AL M4 type upper
Hand Guard CMMG RML4 M-LOK
Charging Handle CMMG Oversized Ambi
Magazine CMMG 10rd X3 - Same Size As 25rd CMMG Mag

Reviews