CMMG’s 5.7x28mm, 10rd 5.7 AR Conversion Magazine 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 CMMGs 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.
| Manufacturer | CMMG |
| Pricing Unit | EA |
| Model | Conversion Mag |
| UPC | 816422029822 |
| SKU | 54AFC56 |
| Width | 5.1000 |
| Length | 12.3000 |
| Height | 1.7000 |
| Weight | 0.6250 |
