Breakthrough Clean Brass Jag – .357 / .38 / 9mm, #8-32 (BT-357/38/9BJ)

This is the Breakthrough Clean Technologies brass jag machined for .357 / .38 caliber / 9mm bores. It uses a standard #8-32 thread for Breakthrough stainless cleaning rods (and other rods with the same thread). Breakthrough part number BT-357/38/9BJ, UPC 852712005794.

This listing is for the .357 / .38 / 9mm brass jag (BT-357/38/9BJ) only.

Caliber-Specific Brass Jag

Breakthrough machines these jags to a specific caliber for a precision fit, stamps the caliber on the jag, and threads them #8-32 for rod attachment. Wrap a cleaning patch over the jag to push solvent and fouling out of the bore.

Breakthrough Clean BT-357/38/9BJ Specifications

Frequently Asked Questions

What calibers does this jag fit?
Breakthrough lists it for .357 / .38 caliber / 9mm.

What thread size is it?
#8-32 — the standard pistol/rifle thread Breakthrough publishes for this size class.

Is it brass?
Yes. Breakthrough fabricates this jag from brass and stamps it with the caliber.

Does it include a cleaning rod or patches?
No. This listing is the jag only.