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Available in black or Green Correct for both US and Canadian builds. For AR-15/SR-15 based platforms only not compatible with SR-25 variants. RIS RAS Quad Rail / Keymod Handguards for AK47 Ak74 AR15 M16 M4 M14 M1A FN-FAL L1A1 STG-58 Steyr-FAL HK G3. CAR-15/ XM177 6 Hole Handguards: New reproductions of original round Car-15 handguard. Heavier barrel contours may require modification to the inside of the rail.
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Lighter barrel profiles work best (M4 or Government contours). The NcStar AR Carbine-Length Quad Rail replaces standard handguards on AR/M4 carbines with carbine length gas systems using the GI handguard cap and delta. The rifle must have a carbine length gas system, delta ring assembly, fixed front sight/gas block, and round handguard end cap. Rifle Requirements: The M4 RAS is a drop-in replacement part for standard, 2-piece polymer, M4-type handguards. 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.
#M4 carbine quad rail handguards upgrade
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. 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. You dont mention length of your AR-15 but most M4 carbine length AR-15s come with milspec standard handguards.