Hi All,
I have 3d printed a follower, spacer, and spring retainer to convert a 5rnd 308 AICS mag to an 8-9 rnd grendel/arc mag. Everything fits great but im have trouble with the feed lips. As you can see in the side view the cartridge wants to tip up towards the front of the lips. I need to add material to the forward edges to retain the smaller diameter grendel case. I tried some jb weld specific for polymer but it would not dry hard enough and would not allow smooth feeding. Looking for suggestion on epoxies or compounds that I could build up the feed lip and will cure as hard as the original polymer material.
I have 3d printed a follower, spacer, and spring retainer to convert a 5rnd 308 AICS mag to an 8-9 rnd grendel/arc mag. Everything fits great but im have trouble with the feed lips. As you can see in the side view the cartridge wants to tip up towards the front of the lips. I need to add material to the forward edges to retain the smaller diameter grendel case. I tried some jb weld specific for polymer but it would not dry hard enough and would not allow smooth feeding. Looking for suggestion on epoxies or compounds that I could build up the feed lip and will cure as hard as the original polymer material.