The NcStar MAR4S Quad Rail Carbine Length AR-15 Black Hardcoat Anodized Aluminum 6.70" handguard is a drop-in upgrade that replaces standard AR-15 carbine handguards with a solid, four-sided Picatinny rail platform. Machined from aluminum with a black anodized finish, it offers a stable mounting surface and laser-engraved rail markings to keep accessories organized and repeatable.

This carbine-length quad rail is designed for rifles using a standard delta ring and handguard cap, installing in minutes with basic tools and no permanent modifications. Its large ventilation cuts help manage barrel heat while the 6.7" overall length provides ample space for lights, vertical grips, bipods, and other rail-mounted accessories, making it well suited for range use, training, and general-purpose AR-15 builds. NcStar’s focus on practical design and value is evident in the straightforward installation and durable construction of this handguard.

Key Features:

• Manufacturer: NcStar
• Model: MAR4S Quad Rail
• Firearm Fit: AR-15 carbine length gas system
• Type: Quad rail handguard
• Material: Aluminum
• Finish Color: Black anodized
• Length: 6.7" overall
• Rails: Four Picatinny rails with laser-engraved markings
• Installation: Drop-in design, no gunsmithing required
• Weight: 9.9 oz (approximate)