Perazzi Factory Stock set for Perazzi MX10 or Perazzi RS that is BRAND NEW/UNFIRED. For dropout trigger receivers and for 4 notch adjustable rib barrel. Could work also for a Perazzi RS. The difference between an MX10 with 4 notch and RS with 4 notch is about .20 difference in comb. So on an RS the comb will be about .20 higher. Dimensions off MX10 with 4 notch adjustable rib barrel: No Palm Swell 1/4 cast on for left handed shooter, the cast is very minimal, could work for right and left handed shooter Length of pull 15 inches Factory 4 way adjustable comb $1999 www.lombardosportingarms.com