AR-15 M4 Quadrail Handguard
The NcStar MAR4S is a 6.5" carbine-length quad rail handguard built to replace the factory plastic furniture on any standard AR-15 or M4 with a carbine-length gas system. Machined from aluminum and finished in hardcoat black anodizing, this 3rd-generation design is slimmer and lighter than earlier versions while giving you four full-length Picatinny rails for mounting optics, lights, lasers, vertical grips, and bipods. Installation is a true drop-in job using the existing GI handguard cap and delta ring, with four Allen screws and the included tool. A solid pick for shooters who want to convert a stock carbine into a fully accessorized tactical platform without gunsmithing.
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- SKU
- MAR4S
$39.64
Description
Features
- Carbine-Length Drop-In Fit — Replaces standard 6.5" AR-15/M4 carbine handguards using the factory GI handguard cap and delta ring with no gunsmithing required.
- 3rd Generation Slim Profile — Updated MAR4S design is lighter and slimmer than earlier versions for a more comfortable grip and reduced rifle weight.
- Full Quad Rail Platform — Picatinny rails at the 12, 3, 6, and 9 o'clock positions accept optics, lasers, lights, vertical grips, bipods, and other tactical accessories.
- Aircraft-Grade Aluminum Construction — Machined aluminum body delivers solid mounting strength while keeping total weight to just 9.9 oz.
- Hardcoat Black Anodized Finish — Type III anodizing resists wear, corrosion, and solvents for a long service life under hard use.
- Laser-Engraved Rail Markings — White-filled T-marks on every rail let you record and return to exact accessory positions.
- Compact Dimensions — 6.5" length (6.7" O.A.L.), 2.3" wide, 2.3" tall — sized to match standard carbine furniture footprints.
- Four-Screw Clamp Mounting — Installs in minutes with four Allen-head screws and the included mounting tool.
- Broad Platform Compatibility — Fits AR-15/M4 carbines with 16" barrels and carbine-length gas systems, including S&W M&P-15, Bushmaster XM15-E2S, DPMS AR-15, Ruger AR-556, and mil-spec variants.
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Customer Reviews
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100% of customers recommend this product
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Top customer reviews
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Great budget rail, shipped fast tooOrdered on a Monday and had it by Thursday which was nice. Threw it on my PSA upper and mounted a light and foregrip no problem.
Affordable and functional
Rail covers not included, fingers will hate you at the range without em
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Great upgrade, boyfriend loves itGot this as a gift for my boyfriends AR build and he was genuinely suprised at the quality for the price. He said it fit perfectly on his carbine with the standard delta ring setup and he didnt have to mess with anything. He already has a flashlight and vertical grip mounted and says it feels way more solid than the stock handgaurds. Shipping was also really fast it showed up in 3 days.
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Gives you that GI look!Gave my Bushmaster that G I look everybody likes. Gave it better balance as there is more weight upfront. It took me a little while to figure it out cause the instructions were sparse.( no fitting) Once it went on its completely solid and looks sharp. Great buy.
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