Shotgun cleaning rods use 5/16-27 thread. Rifle and pistol accessories - brushes, jags, mops, slotted tips — use 8-32 thread. This brass cleaning rod adapter bridges the gap so you can use your standard 8-32 gun cleaning accessories on a shotgun rod, or mount shotgun-threaded attachments onto an 8-32 rod. One small adapter eliminates the need for a second cleaning rod.
If you own both a shotgun and a rifle or pistol, you already know the frustration: your 12 gauge bore brush won't thread onto the same rod as your .30 cal jag. The industry settled on two different thread standards decades ago, and shooters have been buying duplicate rods ever since. This thread adapter solves that problem permanently. Solid brass construction matches the material of your cleaning rod and accessories - it won't corrode from solvent exposure and won't damage the threads on either side.
Keep one of these in your gun cleaning kit and your shotgun rod becomes a universal rod. Thread the adapter on, attach any 8-32 brush or jag, and clean. No special tools, no forced threading, no stripped threads. A brass cleaning rod adapter that costs less than a single replacement brush but saves you from buying an entire second rod setup.