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Knight’s Armament Company RAS M-4 Carbine Rail Adapter System With Three 11 Rib Panels
M4 Carbine RAS, 5.56mm, with three 11-rib panels The KAC M4 RAS (Rail Adapter System) was developed for use on the US military’s M4 Carbine, and with over 1 million rails issued to date, it is one of the most battle proven designs available for the AR-15 platform. This non-free float handguard is a simple-to-install, drop-in upgrade that features genuine Mil-Spec M1913 Picatinny Rails along its entire length. What sets the M4 RAS apart from other 2-piece quad rails on the market is that it securely locks to the rifle’s barrel nut via a clamp and screw arrangement, making it a very solid foundation upon which to mount tactical accessories. Includes three KAC 11 Rib Rail Panels. For other rib panel lengths and colors, click here Rifle Requirements: The M4 RAS is a drop-in replacement part for standard, 2-piece polymer, M4-type handguards. The rifle must have a carbine length gas system, delta ring assembly, fixed front sight/gas block, and round handguard end cap. Lighter barrel profiles work best (M4 or Government contours). Heavier barrel contours may require modification to the inside of the rail. For AR-15/SR-15 based platforms only; not compatible with SR-25 variants. Installation instructions are included. Specifications: Weight: 8.9oz Length: 6.25? Free Float: No Material: Aluminum Finish: Black Anodizing
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| Weight | 2 lbs |
|---|---|
| Dimensions | 9 × 4 × 4 in |
| UPC | 819064010340 |
| Brand | Knight's Armament Company |
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KAC M4/M5 RAS Hardware Kit
$33.17The KAC Medium URX II free floating forend features an integral, flip-up front sight assembly that folds flush with the continuous top rail when not in use, creating a seamless look. Full length mil-spec M1913 Picatinny rails are located at the 3-, 6-, and 9 o’clock positions, making the URX II compatible with any number of rail-mounted tactical accessories. Includes three KAC 11 Rib Rail Panels.
Kit Contents
(1x) Rear Handguard Clamp
(1x) Rear Clamp Screw
(1x) Rear Clamp Screw Retainer
(1x) Rear Clamp Roll Pin
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KAC URX 4 IBN Keymod Rail 5.56mm 13.0″ Length
URX 4 The URX 4 is a continuous top-rail system that utilizes the Keymod mounting brackets developed by Vltor and Noveske. This rail system is built stronger and more stable than previous designs due to the absence of a removable bottom rail. The modular layout allows an end user to fully customize exactly where to place accessories without the use of specialized tools, small parts, or additional forces applied to the barrel.
The URX 4 is currently available for 5.56 rifles in 8.5, 10, 10.75″, 13, and 14.5 lengths, and is equipped with Knights unique IBN mounting configuration. The idea was to create a more modular, and thus more serviceable, rail system that still maintains its strength and stiffness. The IBN system torques the rail onto the weapon and allows the rail to act as the barrel nut. This design was developed to increase stabilization and provide a simpler solution that requires less specialized tools to install and maintain.
A full array of modular accessories, iron sights, and panel kits utilizing the Keymod mounting brackets have been developed specifically to accompany this rail system. With the introduction of the URX 4, Knights Armament Company demonstrates its continuing determination to intelligently design effective products.
Two QD sling swivel sockets built in at the rear of the rail. Includes shim kit and installation wrench.
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KAC Forward Vertical Pistol Grip – Black
Vertical Forward Pistol Grip that fits any MIL-STD-1913 rail and available in Black, Tan, Green, or Taupe.
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KAC Keymod Wire Management Panel Kit, URX 4, Flat Dark Earth (FDE)
$20.11The KAC Keymod Flat Panel Kit includes a set of 2 – 5.5 polymer rail panels and one short switch pocket. Each textured panel snaps securely to any bare section of Keymod equipped rail, providing a more positive gripping surface and also insulating the support hand from barrel heat. The long panels have 3 cable channels to help with switch cable routing. These rail panels are very thin adding almost no width to the handguard. While designed for the URX 4 rail, these panels will also fit any other rifle handguard that has a Keymod interface.
Specifications:
Color: Black or FDE
Panel Length: 5.5″
Material: Polymer
Model: P/N:31560-BLK, 31560-FDE
Manufactured by: Knight’s Armament Company
*Note: FDE is designed to match Magpul FDE
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