The ones from rusmilitary.com have a plastic rod attached below the follower, inside the spring, so that the follower doesn't go down any further.
Tube shotguns use the same idea... a plastic dowel of some sort.
You may be able to "sacrifice" a follower and put a longer side on it w/ a length of sheet metal and maybe pop rivets or something like that.
OR you could sacrifice a mag body and drill a hole through it for a bolt or a rivet to go, physically blocking the follower that way. Would need some way to keep from interfering with the spring, however.
hth,
- Jerry
Tube shotguns use the same idea... a plastic dowel of some sort.
You may be able to "sacrifice" a follower and put a longer side on it w/ a length of sheet metal and maybe pop rivets or something like that.
OR you could sacrifice a mag body and drill a hole through it for a bolt or a rivet to go, physically blocking the follower that way. Would need some way to keep from interfering with the spring, however.
hth,
- Jerry