This is a Pro-Shot Products Jag known as the Spear Tip Jag, model J45B.
This Benchrest Quality unique spear tip brass jag keeps the patch in place when cleaning. A jag draped with a patch completely covers the bore for a superior job of cleaning. Each jag is stamped with the appropriate caliber/mm for easy recognition.
Features:
Spear Tip .45 Cal. Jag