MTT I' ve never swapped any but I understand Ruger will exchange them at N/C if the are unopened.You would have to contact Ruger in Newport NH. Their phone # is 1-603 863-3300.Ask for the parts dept.I' ve had many dealing with Ruger' s parts and service dept. They are a first class operation.You' ll have to call or write since Ruger will NOT accept emails.

Their mailing address is
Sturm,Ruger & Co.Inc
411 Sunapee Street
Newport NH 03773

Ruger Redhawk