| CALIBER | .40 S&W |
| OPERATING SYSTEM | RADIAL DELAYED BLOWBACK |
| BARREL LENGTH | 5 |
| BARREL TWIST | 1:16 |
| BARREL CONTOUR | MT |
| BARREL MATERIAL | 4140CM, SBN |
| BARREL TWIST | 1:16 |
| MUZZLE THREAD | 0.578 X 28 |
| GAS PORT LOCATION |
N/A
|
Barrel Sub-Assm, 5″ MT 4140CM SBN, 40 S&W
Complete your pistol caliber PDW build with an 5″ 40 S&W Radial Delayed Blowback™ barrel. 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 NFA rules apply** See linked CMMG Resource article for more information.
All CMMG products are backed by our Lifetime Quality Guarantee. Learn More.
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