Faxon Firearms URFAXFAC338 Upper Receiver 338 ARC Aluminum Black Anodized Receiver for AR-15
July 14, 2026
Weatherby MBC20N257WR8B Mark V Backcountry 2.0 257 Wthby Mag 3+1 26″ Barrel, Patriot Brown Cerakote Metal Finish, Brown Sponge Pattern Black Peak 44 Blacktooth Stock
July 14, 2026
CMMG 57D88C3 Barrel/BCG Kit 5.7x28mm 8″ Black Chrome Moly Steel
$470.47
CMMG 57D88C3 Barrel/BCG Kit 5.7x28mm 8″ Black Chrome Moly Steel
2 in stock
The 5 5.7x28mm Barrel and BCG Kit allows you to build an AR in 5.7x28mm using CMMGs patented Radial Delayed Blowback operating system. Unlike typical direct blowback systems, Radial Delayed Blowback not only reduces the weight in your BCG but it results in less felt recoil than a straight blowback system. CMMGs 5.7x28mm Barrel and Bolt Kits are designed to be assembled into a mil-spec AR15 Upper and work with either a CMMG Mk57 lower receiver or with a standard Mk4/AR-15 lower receiver (when using CMMG 5.7 AR Conversion Magazines).
| UPC | 810097502406 |
|---|---|
| Manufacturer | CMMG |
| Manufacturer Part Number | 57D88C3 |
| Barrel Length | 8" |
| Caliber/Gauge | 5.7 x 28 mm |
| Length | 17.4000 |
| Product Type | Barrel |
| Shipping Weight | 1.775 |
| Sights | No |
