These extended magazine boxes are built to allow longer bullet seating, and thus a longer than standard overall cartridge length. A window and break-point are also incorporated for use with wider cartridge case bodies, such as those used for the various Ultra Magnums. Installation requires alterations to the receiver, bolt stop and ejection port.
Incorporates a window and break-point to allow for wider cartridge case bodies such as the Ultra Mags
Box extends overall length of the cartridge approximately .110"
The statements and opinions expressed within Customer Reviews reflect each author's personal perspective and do not imply endorsement by MidwayUSA, its Employees or any other organization. Customers should in no way infer that MidwayUSA has validated review information as safe, accurate or appropriate.