Gun Cleaning Jags

Precision Cleaning for Better Patch Contact with GUNNIX

A cleaning jag is a brass tip with a sharp point and a stepped shoulder that threads onto a cleaning rod and works together with a patch. You pierce the patch on the point, the shoulder spreads it around the tip, and the patch enters the bore as a snug sleeve rather than a piece of cloth folded in half. That is how it presses against the rifling around the full circumference and, in a single pass, picks up leftover solvent, dissolved carbon and copper. The same tip lays down a coat of oil at the end before storage. Unlike a brush or a mop, a jag gives you feedback: the patch comes out of the barrel and tells you right away whether the gun is ready for the safe.

Gun cleaning jags from GUNNIX are machined from solid brass, an alloy that is softer than barrel steel: if the rod goes off-center, it is the point that deforms, not the rifling. The range covers every popular caliber from.17 to.50.

Explore Our Selection of Brass Jags

A tip comes in one size, but there are usually several cartridges that share that bore diameter. So one tip fits several rifles or pistols at once.

By Caliber

Here is how caliber brass jags map to cartridges:

• .17 –.17 HMR.
• .22 –.22 LR,.223 Rem, 5.56 NATO.
• .243 –.243 Win, 6mm Rem.
• .25 –.25 ACP,.25-06,.250 Savage.
• .270 –.270 Win,.270 WSM.
• .30 –.308 Win,.30-06,.30-30,.30 Carbine,.300 Win Mag, 7.62 NATO, 7.62x39.
• .338 –.338 Lapua,.338 Win Mag.
• .357/9mm – 9mm,.357 Magnum,.357 Sig,.38 Special,.380 ACP.
• .375 –.375 H&H,.375 Ruger.
• .40 –.40 S&W, 10mm Auto.
• .44 –.44 Magnum,.44 Special.
• .45 –.45 ACP,.45 Colt,.454 Casull.
• .50 –.50 AE,.500 S&W.

If your cartridge is not on the list, the size you need is set by bullet diameter, which is printed in the specifications of any cartridge.

By Firearm Type

A gun jag for rifles is available in sizes from.17 to.375, including two that rarely show up in pre-packaged kits:.338 and.375 for magnum calibers. Pistols and revolvers get.357/9mm,.40,.44,.45 and.50, while.22 and.25 are listed for both firearm types, since these calibers are chambered in rifles and handguns alike.

By Rod Compatibility

Every size but one is threaded 8-32. A brass jag like this fits GUNNIX rods and flexible cables as well as the vast majority of rods from other brands. The exception is the smallest.17: it carries fine 5-40 threading, so it only mounts on an 8-32 rod through an adapter, which you will find in our catalog.

Why the Right Size Matters for Your Firearm

A jag has no bristles or cotton to make up for a poor fit. Everything rests on geometry: a hundredth of an inch between the tip and the bore is already something you can feel in your hand, and at two hundredths the patch either will not go in or will not press against the walls. Before adding one to your cart, check these five details.

A simple test before the first session: a dry patch should move through the bore snugly but without jerking. If you have to lean on the rod, the cloth is too big; if it drops through on its own, it is too small or the tip is already worn. This is how jag gun cleaning immediately shows whether the jag and patch are matched correctly.

Benefits of GUNNIX Brass Gun Cleaning Jag

Every brass gun cleaning jag from GUNNIX passes quality control, so the dimensions are identical across batches. That matters for a jag in particular: if one.30 tip is slightly thicker than another, your usual patch will no longer pass on it, and you will have to size your cloth all over again.

Solid brass with no steel core adds another guarantee: even if the rod goes off-center, the point will not scratch the rifling. The slender stem of a.22 jag shows this best. Plastic equivalents snap there on the first hard push, while the brass one simply keeps working.

The lineup is built so you never have to make do with a neighboring size. Dedicated tips for.243,.270,.338,.375 and.44 are exactly the calibers whose owners usually have to hunt for a jag separately or put up with a loose patch. And each one is sold as a single for one caliber or in packs of three to twenty for those who maintain a whole safe.

If you are torn between two adjacent calibers or unsure about your rod thread, our team will help you decide.