BREN 8MM ZB Magazines

[tr63]

I would be very leery of removing any receiver metal as it can not be replaced . The back side of the mag. body would be the area I would alter to make it fit the curve in the receiver . If that fails you only ruin the mag. . I use the ZB 30 mag. in 8x56r in my semi-auto with the SA .308 barrel and did not have to make any changes to the receiver body ,only to add a extension to the tip of the mag. to get a better lock up as is noted in this tread earlier on .