Description
Cleaning a shotgun barrel should be a quick job, and the Bore Tech 20 Gauge Shotgun Jag is built to keep it that way. This is a nylon patch jag with four oversized petals that flex and compress as they enter the bore, pressing your patch out evenly against the barrel walls. The result is more patch surface touching more of the barrel, which means fouling comes out faster and you spend less time reaching for another patch.
What Sets the Bore Tech Shotgun Jag Apart
The magic here is in those four petals. Each one has gripping rings molded into it that grab the patch and hold it tight, so nothing bunches up or slides loose halfway down the barrel. Because the petals collapse under pressure, this jag will squeeze right through a choke tube, fixed or removable, without you having to pull the choke first. Spike a patch onto the tip and send it down the bore. That is about all there is to it.
Fit and Threading on the 20 Ga Patch Jag
This jag is cut for the 20 gauge and rides a standard 5/16-27 thread, so it screws onto just about any common shotgun cleaning rod you already own. Bore Tech makes these across the full range from 10 gauge down to .410, so if you run more than one gauge it is easy to match a jag to each barrel. It works great as part of a full field cleaning routine or a quick swipe between rounds at the range.
A Handy Tool for Any 20 Gauge Owner
Whether you are running an upland bird gun, a youth-sized pump, or a sporting clays 20, this jag earns its keep. The tight patch fit does a better job pulling out powder residue and plastic wad fouling than a loose mop pass, and the whole thing is small enough to live in your range bag or cleaning kit. For anyone who wants a simple, effective way to keep a 20 gauge bore clean, this is a solid pick-up.
Key Specifications
- Manufacturer: Bore Tech
- Manufacturer Part Number: BTSG-100-20
- UPC: 667739100205
- Gauge: 20 Gauge
- Material: Nylon
- Thread Size: 5/16-27
- For Use With: Shotguns
- Style: Patch jag with 4 flexible gripping petals
- Choke Compatible: Yes, compresses through choke tubes
What’s Included
- One Bore Tech 20 Gauge Shotgun Patch Jag (BTSG-100-20)
Frequently Asked Questions
Will the Bore Tech 20 gauge jag fit my cleaning rod?
It uses a standard 5/16-27 thread, which is the common shotgun rod size, so it will thread onto most shotgun cleaning rods you already have. If your rod has that thread, you are good to go. It is worth a quick check of your rod's threading before ordering.
Can this jag pass through a choke tube?
Yes. The four petals are designed to compress as they enter the bore, so the jag will squeeze right through fixed or removable choke tubes. You do not have to remove your choke to run a patch down the barrel.
How does a patch jag compare to a bore mop for cleaning?
This jag pushes the patch out evenly against the barrel walls with 360 degrees of pressure, so you get more contact and a tighter fit than a loose mop pass. That tighter fit does a better job scrubbing out powder residue and wad fouling. Many folks use a jag for the scrubbing and a mop for oiling.
Is this jag only for 20 gauge shotguns?
This particular model is sized for the 20 gauge bore. Bore Tech makes the same style jag in gauges from 10 all the way down to .410, so if you run other shotguns you can pick up a matching jag for each one.



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