The GL-CORE incorporates an integrated cheek weld, ergonomic buttpad and interchanging tube adapters, that provide an unmatched fit on Mil-Spec and Commercial buffer tubes. The CP version includes an additional Cheek Rest, designed to support the use of different optics and holographic sights on the AK and VZ platforms.Features:Ergonomically shaped rubberized butt-pad for quick shouldering and easy maneuvering of the weaponInterchangeable buffer tube adapters for a tight fit on Mil-Spec and Commercial buffer tubesIntegrated cheek weld in an overall compact and sleek designNo protruding parts, will not get caught on gear or webbingInversed positioning lever will not open accidentlyTwo integrated quick detach rear sling swivel connectorsAdditional, three positions adjustable Cheek-RestMade of durable and light-weight fiberglass reinforced polymer composite