Daniel Defense M4A1 RII 14.5″ 5.56mm Semi-Automatic AR-15 Rifle

Elevate your shooting experience with the Daniel Defense M4A1 RII 14.5″ 5.56mm Semi-Automatic AR-15 Rifle, a legendary platform inspired by military-grade reliability and precision. Trusted by U.S. Special Operations Command for the SOPMOD program, this tactical rifle delivers exceptional performance for home defense, range training, and competitive shooting. With its compact design and robust construction, the M4A1 RII combines maneuverability with unyielding durability, making it the go-to choice for discerning shooters seeking a dependable AR-15 that performs when it matters most.

Key Features

• Cold Hammer-Forged Barrel: 14.5-inch chrome-lined M4 profile barrel with 1:7 twist ensures superior accuracy, longevity, and consistent cycling even in adverse conditions.
• RIS II Quad Rail System: Free-floating Picatinny rail allows seamless attachment of optics, lights, and grips, providing endless customization for your tactical setup.
• GRIP-N-RIP Charging Handle: Ambidextrous design facilitates quick, intuitive operation for both left- and right-handed users, enhancing speed and control during high-stress scenarios.
• Ergonomic Furniture: Daniel Defense pistol grip and collapsible buttstock offer comfortable handling and adjustable length of pull for all-day comfort and precision aiming.
• Pinned Muzzle Device: Permanently attached flash suppressor extends the barrel to a legal 16 inches, minimizing flash signature while maintaining compact handling without NFA restrictions.

Specifications

• Action: Semi-Automatic
• Caliber: 5.56 NATO / .223 Remington
• Barrel Length: 14.5 inches (pinned to 16 inches overall)
• Gas System: Carbine-length direct impingement for reliable operation
• Overall Length: 31.5–34.75 inches (collapsed/extended stock)
• Weight: 6.74 lbs (unloaded)
• Magazine Capacity: 30 rounds (compatible with standard AR-15 magazines)
• Finish: Mil-Spec hard coat anodized black
• Stock Material: Synthetic polymer
• Condition: New in factory packaging
• CA Compliant: No

Why Choose the Daniel Defense M4A1 RII?

In a market flooded with AR-15 options, the M4A1 RII stands out for its battle-tested heritage and meticulous engineering. Shooters often struggle with unreliable cycling in dirty environments or heavy recoil from shorter barrels—this rifle addresses those pain points with its chrome-lined bore for easy cleaning and a balanced carbine gas system that softens felt recoil without sacrificing velocity. The lightweight frame (under 7 lbs) ensures fatigue-free handling during extended sessions, while the flared magwell speeds up reloads for competitive edges. Whether you’re a professional defender or an enthusiast building your ideal setup, this rifle’s modularity and precision solve common frustrations like accessory compatibility and long-term reliability, delivering confidence in every shot.

Don’t settle for less—secure the Daniel Defense M4A1 RII today and experience the pinnacle of tactical excellence. Perfect for those upgrading from basic AR platforms, it’s ready to become your most trusted companion on the range or in defense of your home.

Frequently Asked Questions

1. What gas system does the M4A1 RII use?
The M4A1 RII features a carbine-length gas system, which provides reliable cycling and reduced recoil compared to rifle-length systems, ideal for its compact 14.5-inch barrel.

2. Is the charging handle ambidextrous?
Yes, the GRIP-N-RIP charging handle is designed for ambidextrous use, allowing smooth operation from either side without compromising grip or control.

3. Can this rifle handle suppressed use?
Absolutely, the pinned flash suppressor and free-float rail make it suppressor-ready, with the robust construction supporting threaded muzzle devices for enhanced stealth and reduced signature.