Need some help here guys

[stillrollin300]

Not sure what this may be any ideas. It's roughly two inches long.

 

[duggap]

That's a musket sling hook. Nice find.

 

[stillrollin300]

Geez I knew it looked familiar just couldn't put my finger on it to save my life.

 

[TheCannonballGuy]

Actually, civil war and Indian-Wars era musket/rifle slinghooks had only two rivets -- unlike Stillrollin300's find, which has three rivets. Depending on its exact length, it is either a straphook from a Mann's Patent Model-1864 cartridge-box rig's strap, or a US Model-1859 Swordbelt's length adjuster hook. See the photos below. (First two are the swordbelt length adjuster hook.) Based on the length of the hook's tongue in Stillrollin300's photos, I believe it is a swordbelt length adjuster hook.