This Thompson Center manufactured pistol grip cap screw is for the synthetic stocked Black Diamond in-line muzzle loading rifle and is in very good condition with light slot wear. (file photo)

Note: Black Diamond muzzle loading rifles with the following serial numbers have been observed with this part:

Blue Finished Black Diamond: 33685, 70505 & 79479

Stainless Steel Black Diamond: S37202

Blue Finished Black Diamond Super 45 XR: R18614