Modification intructions for MWR-4600 for 20 Gauge Remington Shotgun
MAKE SURE YOUR SHOTGUN IS UNLOADED BEFORE STARTING!
Alteration of adapter SPG0130 is required
SPG0130 Remington Adapter is shown in white (above image). The adapter must be filed approximately 1/32" over the entire projected surface of the adapter.
Use a dremel tool to remove interference with the receiver post.
File then check against receiver for fit.
Check for contact between trigger guard and front pistol grip face (File Face if required).
