The receiver has an integral 17mm scope rail and is drilled and tapped to mount a scope base. The fluted, two-lug bolt has an outsized bolt knob and also a 75-degree elevate. The bolt shroud is steel, not plastic. Need a 260 Remington? No dilemma. Have a necessity for the 223 Remington? Once again, no trouble. On the other hand, you’ll get exact