Details
This is a brand new Sig Sauer MCX Conversion kit to convert your MCX Rattler from .300 Blackout to 5.56mm NATO with a 5.5" Barrel or can be used as a backup barrel assembly for your existing 5.56mm Rattler. This kit will ONLY work on an MCX Rattler. If you have an MCX that is not a Rattler model this will NOT WORK on your MCX.
All NFA rules apply.
Additional Information
| SKU | CALX-MCX-5B-556-TAP |
|---|---|
| Caliber | .223 / 5.56 |
| Manufacturer | Sig Sauer |
| Accessory Rail | Not Applicable |
| Warranty | Warranty provided by product manufacturer. |
Product Questions
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