MISSION FIRST TACTICAL aiwb holster fits: block 19/23 can be worn inside or on the waistband molded, trimmed, assembled, buffed by hand ambidextrous comfortable for constant wear adjustable cant 0-15 includes 1.5 inch belt attachment audible click Passive retention laser CAD design for perfect fit, smoother draw, less wear adjustable retention quality screws, rivets attachments custom molded fit using high quality Boltaron lifetime warranty black veteran made in the USA.