Quick view NcSTAR NcSTAR AR-15 CARBINE LENGTH DROP IN QUAD RAIL Features: • AR-15/M4 Carbine Length Quad Rail Handguard. Fits onto the carbine using the GI Handguard Cap and Delta Ring • The Solid Quad Rail provides the steady platform attaching: Optics, Lasers, Flashlights, Verticle Grip, Bipod, and... Now: $39.95 Was: MSRP: Compare