Knights Armament Free Float Rifle Ras 5.56 Mk 12 Mod 1 - KM21318

Upgrade your AR-15 with the legendary Knights Armament Free Float Rifle RAS 5.56 Mk 12 Mod 1, the gold standard in tactical rail systems designed for precision shooters and military enthusiasts. Originally engineered for the U.S. military’s Mk 12 Special Purpose Rifle program, this free-floating quad rail delivers unmatched accuracy and modularity, transforming your rifle into a versatile precision platform without compromising reliability.

Key Features

• Full-Length Quad Picatinny Rails: MIL-STD-1913 compliant rails at 12, 3, 6, and 9 o’clock positions provide endless mounting options for optics, lights, grips, bipods, and more, ensuring secure accessory attachment for any mission.
• Free-Floating Design: Isolates the barrel from handguard contact, reducing vibrations and flex for superior shot-to-shot consistency and enhanced long-range accuracy.
• Premium Anodized Black Finish: Type III hard anodizing offers corrosion resistance and a sleek, professional look that withstands harsh environments.
• Included Rail Panels: Three 11-rib protective panels safeguard the rails from damage while maintaining a lightweight profile.
• Easy Installation: Designed for carbine or mid-length gas systems with low-profile gas blocks, it installs in minutes using standard AR-15 tools.

Technical Specifications

• Length: 12 inches
• Weight: 16.3 oz
• Material: Aircraft-grade aluminum
• Rail System: Quad Picatinny
• Profile: Free Float
• Compatibility: AR-15/M4 platforms with appropriate gas system

Why Choose the Knights Armament MK12 Mod 1 RAS?

For shooters frustrated with standard drop-in handguards that compromise accuracy due to barrel contact, this free-float RAS solves the problem by promoting harmonic barrel stability—ideal for designated marksman roles or competitive shooting. Unlike basic rails, its robust construction handles heavy accessory loads without sagging, addressing common issues like rail misalignment or accessory wobble. Customers rave about its durability in field use, making it a top pick for building authentic MK12 clones or customizing precision rifles. Whether you’re tackling long-range targets or urban scenarios, this rail elevates performance while maintaining the tactical edge you demand.

Ready to enhance your rifle’s potential? Integrate the Knights Armament Free Float Rifle RAS 5.56 Mk 12 Mod 1 into your setup today and experience military-grade precision firsthand.

Frequently Asked Questions

Q: Is this rail system compatible with my AR-15?
A: Yes, it fits standard AR-15 platforms with a carbine or mid-length gas system and low-profile gas block. Verify your barrel nut compatibility for seamless installation.

Q: How does the free-float design benefit accuracy?
A: By eliminating contact between the handguard and barrel, it minimizes external influences on barrel harmonics, leading to tighter groups and improved precision at distance.

Q: Does it include all necessary hardware for installation?
A: The kit includes the rail, barrel nut, and protective panels. Basic AR tools are required, but no modifications to the upper receiver are needed.