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This FiveSeven 10rd mag extension is the ultimate upgrade to your 5.7×28 pistol. Installation takes only seconds and does not permanently alter factory magazine. Chrome silicon spring is salt water-resistant and will not take a set.
| UPC | 852005002028 |
|---|---|
| Manufacturer | CMMG |
| Manufacturer Part Number | 57AFD1E |
| Brand Fit | FN |
| Caliber/Gauge | 5.7 x 28 mm |
| Capacity | 10 |
| Model | Extension |
| Model Fit | Five-seveN |
| Product Type | Magazine Extension |
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