I picked this up for my K98k, which has some pretty gnarly carbon buildup in the bore and my ammo is corrosive, so I figured this will help keep the problems down and keep her firing straight.

Nearest I can tell is it was manufactured by Phipps Prod Corp for the US military in November '75.

If anyone has any details on whether or not it's safe to use, that'd be awesome. I'm attaching some pictures. I won't embed them in the post because they are large.

The seller also threw in a wire brush that doesn't attach to the K98s cleaning rod... I'm not sure what to do about that...

Please advise,

-Brian