The Essential

MPro7 Gun Cleaning Guide


The MPro7 Cleaning Method

Always make sure the firearm is unloaded before cleaning. Spray MPro7 Gun Cleaner on the entire firearm and brush with a nylon brush to remove exterior carbon deposits. You can also soak the entire firearm in the solution. (see Ultrasonic or Dip Applications). Wipe down with a dry cloth (use cotton swabs for those hard to reach places) and re-oil to protect the finish. Most major gun manufacturers have approved MPro7 for use on their finishes.


To clean the bore, we recommend the "MPro7 Process" which is…

Step 1: Spray MPro7 Gun Cleaner into the bore. For smaller diameter bores, swab with a patch thoroughly soaked with MPro7 Gun Cleaner. (For MPro7 Bore Cleaning Gel, dip the brush and run through the bore several times). Make sure that the bore is completely coated. You can also plug and fill the bore with the cleaner.

Step 2: Wait 1-5 minutes depending on fouling.

Step 3: Run a bore brush through the full length of the barrel 2 or 3 times.

Step 4: Now "dry patch". Meaning, run a dry cleaning patch down the bore. It is best if the patch fits tight, so we recommend a jag or double patching. MPro7 Competition Gun Cleaning Patches have ridges that get into the rifling and are very aggressive on lead & copper fouling.

Step 5: Repeat Steps 1 - 4, four to eight times until the bore is spotless and the patches are white. Even after 8 times, the patch might come out a very light gray. If there is no visible fouling, stop cleaning. The light gray material is microscopic carbon deposits actually being pulled out of the pores of the metal and does not have a significant impact on accuracy. In addition, it will be removed in subsequent cleanings until a point will be reached where only Steps 1 - 4 will be repeated four times and the patches will come out white every time.


MPro7 Secrets

Heating the solution - Heat speeds up the cleaning action of MPro7 Gun Cleaner. Remove the sprayer and warm the liquid in the microwave (do not heat to a scalding temperature). Then follow the "MPro7 Process".

Lead Fouling Removal - Lead fouling is the bane of most pistol shooters, particularly re-loaders. Sometimes you can scrub for hours and scrape with a dental pick and it will still not come out of the bore. Many shooters have literally spent hours trying to remove lead. Now you will have the secrets of secrets to tell your friends and become the hero of the day. If you or your friends have cleaned properly using MPro7 Cleaners and still have lead fouling….

Step 1: Spray MPro7 Gun Cleaner (or use MPro7 Bore Gel) down the bore and wait 5 minutes.

Step 2: Take a small dime or quarter size piece of a stainless steel camp pot scrubber (Coughlin Product #9325, which looks like shaved, curly cued stainless steel) and wrap it around your metal brush. This is completely safe and will not scratch the bore.

Step 3: Run the brush and pot scrubber material down the bore 5 or 6 times. 99 times out of 100 the lead will come right out. If not, repeat the process a few times.


Lead Removal - Compensators - Shooters using cast or hard cast lead bullets have a difficult time removing the lead fouling that builds up in multi-ported compensators. Using MPro7 as directed enables these deposits to be completely removed with toothpicks and cotton swabs. MPro7 Gun Cleaner will keep the compensator clean and operating at 100% efficiency longer with less effort. Subsequent lead removal becomes even easier with regular use.

Copper Fouling Removal - At bullet velocities under 3,000 fps (approximately), copper will come out the same as lead fouling. However, at higher velocities there is a metal to metal adhesion or bonding between the copper and the bore steel. What should you do then?

First, perform the "MPro7 Process" (once or twice to begin). Then use an ammonia based copper solvent as directed to corrode the copper out of the bore. MPro7 will remove the top layer of carbon from the bore allowing the ammonia solvent to work in half the time or less. All ammonia-based cleaners can cause corrosion and pitting. Plus, ammonia in any form is toxic, so use adequate ventilation and safety precautions. If not completely removed, the ammonia can cause crystals to form, which attract water and can expand into the rifling causing microscopic stress fractures and corrosion. After the copper removal, follow the "MPro7 Process" 2 or 3 more times. Used correctly, MPro7 will completely remove all traces of the ammonia so it will not pit the bore. In addition, the bore conditioning capabilities of MPro7 will help reduce future fouling.


If you have any cleaning questions or problems, please call us at 1-800-937-4677.