Bore Mops

Abore mop is a dense cotton head wound onto a threaded brass core. It screws onto a cleaning rod and runs through the bore after the brush. The brush breaks carbon and copper loose from the metal; the mop soaks up the solvent along with the dissolved fouling and, as a final step, lays a thin film of oil over the rifling before storage. A patch on a jag touches the bore with its flat side only, while cotton wraps the walls completely and pulls out what the patch leaves behind. Skip this step and the cleaning is only half done: the barrel looks clean, but moisture and chemical residue stay in the corners of the rifling.

Why Choose GUNNIX Bore Mops

GUNNIX cotton bore mops are built for cleaning firearms and nothing else, and it shows in every detail. Here is why shooters choose them:

• 100% Cotton Material. Natural fiber absorbs solvent and oil better than synthetics, spreads them evenly across the rifling and leaves no lint inside the barrel. Cotton does not react with copper solvents, so blue-green stains on the mop are copper fouling from your bore, not a false reading from the tool.
• Brass Core Shank. The twisted brass wire keeps the head in shape and does not bend on the stroke, so the mop stays in contact with the walls for the full length of the pass. Brass is softer than barrel steel and will not scratch the bore or the crown.
• Caliber-Specific Sizing. Every model is made for an exact bore diameter, so the head neither rattles in the barrel nor gets stuck in it.
• Universal Thread Compatibility. The 5-40, 8-32 and 5/16-27 standards fit GUNNIX rods and flexible cables as well as most kits from other makers.
• Long Service Life. The cotton winding takes washing without losing its shape, so one mop averages 15-25 sessions. Replace it once the cotton is visibly worn.

Gun Cleaning Mops for Different Calibers

The lineup includes gun bore mops for pistols, revolvers, rifles and shotguns. One head fits every cartridge with the same bore diameter, so ten sizes handle most of what sits in American gun safes. The table below lists every cartridge we make a mop for, sorted by firearm type.

How to Choose the Right Cotton Bore Mop?

Every mop in the lineup is made for a specific caliber. For.22 LR,.30, 9mm,.40,.45,.50 and shotgun bores, the head is sized to press firmly against the bore walls rather than simply slide along them. The threading matches all major cleaning rod standards, so GUNNIX mops will work with whatever kit you already own.

The choice comes down to three things:

• Caliber. One head fits every cartridge with the same bore diameter, so.308 Win and 7.62x39 both take the same.30 mop. For shotguns, go by gauge;.410 has its own dedicated model.
• Firearm type. Pistol, revolver, rifle or shotgun – it tells you at a glance which sizes your safe calls for.
• Rod thread. 8-32 for rifled firearms, 5/16-27 for shotgun rods, 5-40 for the smallest.17 caliber. If the threads do not match, the replacement parts section carries adapters between all three standards.

Our catalog lets you filter products by each of these criteria and find everything you need in seconds. A correctly sized cleaning bore mop from GUNNIX enters the bore with firm, even resistance. If it drops through with no effort, the size is too small; if it will not go in, it is too large.