Product Description
Includes Roller Bearing, Support Shim, Rear Post, and Screw
The Rear Post is pressed into the bearing hole in the original bolt carrier (002 interference fit). The original bolt carrier will need to be reamed to a precise diameter.
Diameter of post .285
Size of reamer .283
We typically use MA Ford TrueSize Reamer .283.
Tool Number: 27228300
