Can you clean a gun with just gun oil?

You might think the answer is NO but not so fast. Let’s look at one example.

Glock 21 barrel after 100 rounds of .45 acp ammo.

Same Glock 21 barrel after 1 cleaning patch and M-Pro7 LPX gun oil. I did not scrub or brush the barrel. I simply wet 1 cleaning patch with M-Pro7 LPX gun oil and pushed it through the barrel with a cleaning rod and a .45 patch jag. As you can see the bore is not “spotless” but it is very clean and remember I only used ONE PATCH. Notice the polygon rifling in the Glock OEM barrel.

Here is the cleaning patch.

This Glock barrel was treated with M-Pro7 LPX gun oil before I shot it, so it had a protective “barrier” in place. But other than that, there was nothing special done to this Glock barrel. M-Pro7 LPX and M-Pro7 Gun Cleaner are amazing products.