MSR Barrel 5.45x39mm 8.25-inch long for 22mm (.866) trunnion hammer forged chrome lined Arsenal - KR-177B
$449.99
Only 1 left in stock
Discover the precision-engineered MSR Barrel 5.45x39mm 8.25-inch designed specifically for Arsenal platforms with a 22mm (.866) trunnion. This hammer-forged, chrome-lined barrel delivers exceptional durability and performance for custom Krinkov-style builds or short-barreled rifle configurations in the versatile 5.45x39mm caliber.
Key Features
- Hammer-forged construction for superior strength and consistent accuracy under demanding conditions
- Chrome-lined bore provides enhanced corrosion resistance and extended barrel life
- Precisely machined for 22mm trunnion compatibility, ensuring a secure fit on compatible Arsenal receivers
- Includes gas port holes for reliable operation in gas-operated systems
- 8.25-inch overall length optimizes maneuverability while maintaining ballistic effectiveness
- 1:8 twist rate stabilizes a wide range of 5.45x39mm ammunition
Technical Specifications
- Caliber: 5.45x39mm
- Length: 8.25 inches
- Trunnion Diameter: 22mm (.866 inches)
- Finish: Chrome lined
- Platform: AK-series (compatible with Arsenal 5.45 builds)
- Twist Rate: 1:8
- Muzzle Threading: None
- Gas System: N/A (port holes included)
Why Choose This Barrel
Builders seeking a factory-quality short barrel for suppressed or compact 5.45x39mm AK variants will appreciate the combination of Bulgarian Arsenal heritage and modern manufacturing standards. The hammer-forged process creates a denser, more uniform steel structure that resists wear far better than button-rifled alternatives. Chrome lining further protects against the corrosive residues common with 5.45x39mm ammunition, reducing maintenance needs and preserving accuracy over thousands of rounds.
This barrel addresses common pain points in custom builds by offering drop-in compatibility with 22mm trunnions, eliminating the need for extensive machining or adapters. Its compact profile enhances handling in tight spaces without sacrificing the reliability expected from premium AK components.
Ideal Applications
- Krinkov-style SBR conversions
- Compact tactical or home-defense firearms
- Collectors restoring or upgrading Arsenal-pattern rifles
Elevate your next project with this authentic Arsenal-specification barrel engineered for longevity and precision.
| Weight | 12 oz |
|---|---|
| Dimensions | 8.25 × 0.866 × 0.866 in |
| Finish | Chrome Lined |
| Cartridge Compatibility | 5.45×39 |
| Gas Block Journal | N/A |
| Barrel Length | 8.5" |
| Gas System Length | N/A |
| Platform | AK-47 |
| Twist Rate | 1:8 |
| Muzzle Thread Pattern | None |
| MPN | KR-177B |
Compliance
NFA (National Firearms Act) compliance is crucial for legal ownership and transfer of regulated firearms and accessories like short-barreled rifles, suppressors, and certain types of ammunition, ensuring adherence to federal regulations to avoid legal penalties and ensure responsible firearm ownership.
