Both the upper and lower receivers are constructed of forged 7075 T6 aircraft-grade aluminum. They have a unique configuration that cannot be directly compared to any other design currently on the market. The upper features a full-length Picatinny rail, which is the same height as the gas block, for mounting optics and irons sights. The charging handle has the external profile of an AR-15, although the internal dimensions have been altered a bit to accommodate the .308 cartridge. The lower receiver has left and right QD ports, located near the buffer tube, and an integral trigger guard. The dimensions of the lower look much like those of an AR-15, with the exception of the enlarged magazine well.
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