VKTR Industries VK-1 5.56 NATO 16" Black V-3110-0916-601

The VK-1 uses a revolutionary patented low-profile piston system design featuring optimum gas port sizing and a piston assembly featuring a unique cup and spigot design that improves the gas seal and overall efficiency of the gas system. The VK-1 also includes a staged gas bleed system with two sets of exhaust ports at precisely determined distanced to reduce the inertia of the operating rod once it nears the end of its stroke. The reimagined VK-1 Short Stroke Piston System includes a fully-supported one-piece op rod and removable gas block and matches the footprint and weight of a standard DI AR-15 while providing the benefits of a piston driven system.