MK57 Upper Features
CMMG’s RESOLUTE lineup is engineered with purpose for those who refuse to compromise on quality. This RESOLUTE upper comes with a 16-inch barrel and is designed for balance, accuracy and maneuverability.
MK57 Upper Specifications
- Model:Mk57
- Type:Complete Upper
- Caliber:5.7X28MM
- Barrel Length:16.1″
- Color:Black
- Fit:AR Rifles
- 16″ Barrel
| Barrel Length | 16.1 |
|---|---|
| Caliber | 5.7 X 28 |
| Condition | New in Box |
| Finish Per Color | Black |
| Manufacturer | CMMG |
| Manufacturer Part Number | 57B3FA4 |
| Model | MK57 Upper |
| Type | Uppers |
| UPC | 816422029662 |
Frequently Asked Questions – CMMG MK57 UPPER 5.7 X 28 16.1" BARREL
- How fast does this ship?
- Ships in 1‑3 business days to your licensed D.C. FFL dealer after purchase and registration.
- Do I need registration?
- Yes. DC requires firearm registration, including a mandatory 10‑day waiting period after purchase approval from MPD before pickup. Handguns require registration, magazines <=10 rounds.
- Is this legal in D.C.?
- Yes, provided it complies with D.C. law (registered, no assault features, magazine ≤10 rounds).
- Is the CMMG MK57 UPPER 5.7 X 28 16.1" BARREL suitable for me?
- This CMMG MK57 UPPER 5.7 X 28 16.1" BARREL is popular for uses like cmmg.
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