Gun Cleaner – Acid-Based Gun Bore Cleaning Solution – KE9 MAC 9

Product description

featues

Professional-grade Formula

Maximum Bore Cleaning Power Formulated to break down and remove carbon, lead, copper, and powder fouling from rifle, shotgun, and handgun barrels.

Quick and Efficient

Acid-Based Precision Formula Penetrates deep into the bore to dissolve stubborn residue and buildup that traditional solvents leave behind.

Tarnish Removal

Fast-Acting Results Works in minutes — just apply, let it work, then patch or swab clean.

Great for Range, Field, or Bench Trusted by sport shooters, hunters, military, and law enforcement professionals.

Quick and Efficient

Ideal for All Firearms Safe for use on stainless steel, blued steel, and other common firearm materials when used as directed.

Tarnish Removal

Easy Application Compatible with bore snakes, patches, and brushes. Minimal effort, maximum results. Important Usage Info: Use protective gloves and eyewear. Not for use on aluminum or non-ferrous metals. Always follow with a neutralizing oil or lubricant.

How to use  KE9 MAC 9 Gun Bore Cleaner

Here’s a practical, step-by-step guide for cleaning a gun bore using a liquid bore solvent (applies to “KE9 MAC 9 Gun Bore Cleaner” or any comparable bore cleaner). If your bottle’s label gives different directions, follow the label

What you’ll need

Bore cleaner solvent, dry patches, a caliber-correct jag/patch loop, nylon or phosphor-bronze bore brush, cleaning rod (or pull-through cable), bore guide (for rifles), microfiber cloths, nitrile gloves, and light gun oil.

Step-by-step

Step 1: Make safe + strip:

Unload, remove the magazine, lock open the action, and visually/physically verify an empty chamber. Field-strip per your firearm manual. Hoppe’s

Step 2: Set up smart:

Work in a ventilated area, put on gloves, and fit a bore guide (rifles) to protect the throat and keep solvent out of the action.

Step 3: Initial dry pass:

Run 2–3 dry patches from chamber to muzzle to remove loose soot. Always clean in the bore’s firing direction to protect the crown.

Step 4: Wet the bore:

Saturate a patch with bore cleaner and push it one way (chamber → muzzle). Repeat 2–3 times to lay solvent throughout the rifling. Hoppe’s

Step 5: Brush the fouling:

Thread on a caliber-correct nylon or bronze bore brush. Make 10–15 full strokes, always exiting the muzzle before reversing (don’t change direction inside the bore). boretech.com

Allow solvent to dwell 3–5 minutes (longer for heavy copper/lead). This loosens stubborn deposits. boretech.com

Step 7: Patch it out:

Push wet patches until they come out lighter, then follow with dry patches until they emerge clean/mostly clean. If blue/green (copper) or grey/black (carbon) persists, repeat steps 4–7.

Step 8: Chamber & crown touch-up:

Use a small nylon brush and a drop of solvent to scrub the chamber, throat, and crown areas; wipe dry.

Step 9: Final neutral pass:

Run one patch lightly moistened with plain solvent or alcohol to remove any cleaner residue, then a very light oil patch to inhibit rust. (For a gun you’ll shoot immediately, skip oil in the bore.)

Step 10: Wipe and lube externals:

Wipe the exterior metal with an oiled cloth; lube action points per your manual.

Step 11: Reassemble + function check:

Reassemble and make sure controls (safety, slide/bolt, trigger reset) operate correctly—with the firearm unloaded.

Step 12: Store dry and protected:

Store muzzle-down or horizontal so any excess oil can’t migrate into the action.

Troubleshooting the common pain points

Stubborn copper/lead: Add an extra 3–5 min soak; repeat brush/patch cycle. Don’t mix different chemistries at once—alternate with dry patches in between. boretech.com

Brush getting stuck: Only reverse direction after the brush exits the muzzle; never mid-bore.

Rod scuffing the throat/crown: Use a bore guide (rifles) and go chamber → muzzle.

Over-oiling: One light oil patch is enough; excess oil can attract debris and spike pressures on first shot. (General best practice.)

Persistent dirty patches forever: Accept “very faint” discoloration as clean for working guns; you’re chasing diminishing returns.

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