Overview
The Faxon Firearms Duty Series 5.56 NATO rifle combines elite engineering with rugged reliability, making it the ideal choice for law‑enforcement, military, and serious civilian shooters. Featuring a 16‑inch Black Nitride 4150 CMV barrel, this firearm delivers exceptional accuracy and longevity even under sustained fire.
Why Choose the Black Nitride 4150 CMV Barrel?
The 4150 CMV steel alloy is a high‑performance material known for its superior tensile strength and resistance to heat‑induced wear. The black nitride coating further enhances the barrel by providing a hard, chemically inert surface that:
- Resists corrosion from moisture, salt, and harsh environments.
- Reduces friction for smoother bullet travel and lower fouling.
- Extends barrel service life, saving you time and money on maintenance.
Optimized for 5.56 NATO
Designed specifically for the 5.56×45mm NATO cartridge, this barrel offers a perfect balance of twist rate, chamber dimensions, and throat geometry to maximize bullet stability and velocity. Whether you are engaging targets at 300 meters or performing rapid follow‑up shots, the Duty Series delivers consistent shot placement.
Technical Specifications
| Model | 15A58M16NHQ |
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| Caliber | 5.56 NATO |
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| Barrel Length | 16 inches (406 mm) |
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| Barrel Material | 4150 CMV Steel |
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| Finish | Black Nitride (Hardcoat) |
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| Rifling Twist | 1:7 (Optimized for 62‑gr. to 77‑gr. projectiles) |
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| Muzzle Thread | 1/2‑28 (Right‑hand thread) |
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| UPC | 816341028678 |
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| Weight (Barrel Only) | ≈ 2.5 lbs (1.13 kg) |
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| Overall Rifle Weight | ≈ 7.8 lbs (3.5 kg) complete with standard duty‑grade furniture |
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| Compatibility | Fits all Faxon Duty Series receivers and standard AR‑15/M4 lower receivers |
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Performance Highlights
• Exceptional Accuracy: Consistent sub‑MOA groups at 100 meters with match‑grade ammunition.
• Heat Management: The heavy‑profile barrel dissipates heat efficiently, allowing for extended burst fire without loss of precision.
• Longevity: Black nitride coating extends barrel life well beyond standard chrome‑lined barrels, making it a cost‑effective solution for high‑volume shooters.
Ideal Applications
- Law‑enforcement duty rifles
- Military and special‑operations platforms
- Competitive 3‑Gun matches
- Precision target shooting
- Home defense and personal protection
Customization & Accessories
The 1/2‑28 threaded muzzle provides a seamless interface for a wide range of aftermarket accessories, including:
- Suppressors (for tactical noise reduction)
- Muzzle brakes (to reduce recoil)
- Flash hiders (for low‑light visibility)
- Hybrid or modular handguards (compatible with standard Picatinny/Rail slots)
Why Faxon Firearms?
Faxon Firearms has earned a reputation for crafting duty‑grade firearms that meet the most demanding operational standards. Each rifle undergoes rigorous testing for reliability, accuracy, and endurance. By choosing the Duty Series 5.56 NATO with the Black Nitride 4150 CMV barrel, you are investing in a platform that delivers professional‑grade performance out of the box.
Customer Assurance
All Faxon Duty Series rifles are covered by a limited lifetime warranty on the barrel and a two‑year warranty on the complete firearm, ensuring peace of mind for every owner.
