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One Horse
One Horse M4 Nitride Barrel 5.56 NATO 16" Mid-Length Gas
One Horse M4 Nitride Barrel 5.56 NATO 16" Mid-Length Gas
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The One Horse M4 Nitride Barrel is a 16-inch barrel chambered in 5.56 NATO and built for the AR-15 platform, using a mid-length gas system for smooth, consistent cycling. Its nitride coating adds durability and corrosion resistance, so the barrel holds up through regular range use and long-term storage alike.
With an M4 profile and a 5.56x45mm NATO chamber, it fits AR-15 pattern rifles and is suited to both new builds and upgrades. The barrel ships as a single unit, ready to be installed with the rest of your upper receiver components.
Key Features
| Brand | One Horse |
| Product Type | Barrel |
| Firearm Fit | M4 |
| Caliber | 5.56x45mm NATO |
| Barrel Length | 16 inches |
| Gas System | Mid-Length |
| Finish | Nitride |
| Condition | New |
| Manufacturer SKU | OH-BR01 |
Highlights
- 16-inch barrel length
- 5.56 NATO chamber
- Mid-length gas system
- Nitride coating for durability and corrosion resistance
Compatibility
Fits M4 and AR-15 pattern rifles chambered for 5.56x45mm NATO.
Frequently asked questions
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