Ruger’s SP101 has an impressive feture list coming fromt he factory. Stating from their website thatit has, 

  • “Cushioned rubber grip with black synthetic insert has no exposed metal in the backstrap, making it extremely comfortable."
  • “Takedown of integrated subassemblies requires no special tools, allowing for easy maintenance and re-assembly.”
  • “Transfer bar mechanism provides an unparalleled measure of security against accidental discharge.”
  • Grip frame easily accommodates a variety of custom grips.”
  • “Triple-locking cylinder is locked into the frame at the front, rear and bottom for more positive alignment and dependable operation shot after shot.”
  • "Ships with (3) full moon clips that act as both a speed loader for the 9mm rounds and aid in the ejection of the spent cartridges."