ASK AN EXPERTDescription
- 5.7x28mm caliber
- 1:9 barrel twist
- Made from 4140CM material
- Only compatible with Cmmg Radial Delayed Blowback BCG
- Nitride finish
- Cmmg's Lifetime Quality Guarantee
Complete your pistol caliber carbine with a Cmmg 5.7x28mm 16.1" Fits Cmmg RDB BCG Barrel Sub-Assm (57D400F). Made from 4140CM, each barrel has a salt bath nitride finish for maximum durability and corossion resistance.
Bolt Carrier Group Compatibility: Radial Delayed Blowback barrels feature a unique barrel extension and require the use of matching caliber Cmmg RDB bolt carrier groups.
All Cmmg products are backed by our Lifetime Quality Guarantee.
Warranty Information
| Caliber | 5.7x28mm |
| Operating System | Radial Delayed Blowback |
| Barrel Twist | 1:9 |
| Barrel Contour | MT |
| Barrel Material | 4140CM, SBN |
| Muzzle Thread | 1/2 x 28 |
| Gas Port Location | N/A |
| Finish | Nitride |
| Barrel Length, in | 16.1" |
