The Ambidextrous Safety Selectors are manufactured without screws or threading that could come loose or strip, utilizing stainless steel detent plungers to lock levers into place. The traditional lever (left) side has been built for a more positive feel meanwhile the right side features a lower profile lever and will not interfere with trigger operation for right hand shooters. Constructed of rugged machined billet tool steel. The 45 degree version has a shorter throw from the â€œSAFEâ€ to the â€œFIREâ€ position. This allows for faster operation of the lever and ergonomics.