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NcSTAR Keymod Rail System for AR-15/M4 platforms. Designed to fit MIL-SPEC Barrel Nut, Delta Ring, and front Handguard Cap. Length 6.5 inches. Weight 5.9 oz (7.9 oz with both accessory rails attached). Drop-in install with no special gunsmithing involved; fit into Delta Ring and front Handguard Cap. Remove factory handguard, drop in the KeyMod handguards and secure with supplied screws. Solid fit, top rail is at receiver height and you have 7 angled KeyMod slots. Black anodized aluminum construction. This model fits Carbine Length Gas Systems. Includes two Accessory KeyMod to Picatinny Rail Sections: Short (3 KM slots/5 Picatinny) and Medium Length (5KM slots/11 slot Picatinny). Package Contents: NcStar Keymod Rail System. Specifications include Manufacturer NcSTAR, Color Black, Finish Anodized, Fabric/Material Aluminum, Mount Type KeyMod, Quantity 1.
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A comprehensive overview of every major component in an AR-15 build—including what's inside bolt carrier groups and parts kits—organized by assembly for new builders.
12 min read
Guide
An overview of AR-15 handguard and rail systems, comparing M-LOK and Picatinny attachment standards and the tradeoffs between free-float and drop-in designs.
7 min read