CMMG’s 5.7 AR Conversion Magazine holds 40 rounds of 5.7x28mm and fits in any standard AR15 lower receiver. To use, simply attach a CMMG 5.7x28mm Radial Delayed Blowback complete upper receiver to an existing AR15 lower. Then, insert CMMG’s 5.7 AR Conversion Magazine to safely feed 5.7x28mm ammunition. CMMG recommends using a standard carbine buffer and action spring to reliably cycle the action in this configuration. The 5.7 AR Conversion Magazine also retains last round bolt hold-open functionality, allowing for faster reloads.
- CALIBER: 5.7x28mm
- CAPACITY: 40 rounds
- WEIGHT: 8oz(unloaded)
TECHNICAL SPECIFICATIONS
| PLATFORM | MK4 |
| CALIBER | 5.7X28MM (CONVERSION) |
| MAGAZINE | 40 ROUNDS |
| WEIGHT | 8 OZ (UNLOADED) |
