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Gunsmithing Seekins sling rail mount to flush cup

radmcg

Sergeant
Full Member
Minuteman
Jun 5, 2008
535
9
Mobile, AL
I have a A5 with a single stud and a flush cup on the bottom of the forend. I have seekins sling rails on all my other rifles and want to mount one on my 300. Does anyone make a flush cup insert that is or could be threaded. The front stud and the flush cup lineup perfect if I could just get something threaded to go in the flush cup so I could mount the rear screw. I dont have a flush cup sling swivel to see if they are threaded for the sling loop or how they are attached.
AHA
Rad