Geissele 14.6" MK20 Dual Tab DDC Handguard Assembly 05-2556S started life as a Border Patrol Rifle requirement -Geissele needed to hit strict weight targets without giving up rigidity, and the skeletonized MK20 design is what came out of that. This 14.6" length stretches the platform out for builds that need more rail real estate than the 12.6" version offers. Machined from 7000-series aluminum and Type III hardcoat anodized in Desert Dirt Color, this Geissele MK20 Rail uses a dual anti-rotation tab clamp system that locks onto Geissele's proprietary barrel nut - easy on and off, but still rated "Super Stiff" internally, which isn't a small claim given how aggressively this rail is skeletonized to cut weight. A full-length Picatinny rail runs the 12 o'clock position, with M-LOK slots at 3, 6, and 9 o'clock for everything else. At 10.8 ounces bare and 12.42 with the barrel nut, this Geissele Handguard stays genuinely light even at the longer length - the kind of weight number that actually matters once you've added an optic, a light, and a foregrip and you're weighing the whole rifle, not just the rail on its own. Key Features: 14.6" free-float length, full-length Picatinny top rail M-LOK slots at 3, 6, 9 o'clock 7000-series aluminum, skeletonized design Dual anti-rotation tab clamp system Height 2.388", inner diameter 1.36", outer diameter 1.59" Weight: 10.8 oz bare, 12.42 oz w/ barrel nut Desert Dirt Color finish Fits mil-spec AR-15 upper receivers If a build needs the extra rail length of a longer barrel or a heavier accessory package without the weight penalty that usually comes with it, this Geissele DDC assembly is built exactly for that trade-off. Geissele 14.6" MK20 Dual Tab DDC Handguard Assembly 05-2556S