The inside of a bolt carrier is the dirtiest, hardest to reach place in your AR-15 rifle. There are so many small nooks and crannies that the only way to thoroughly clean it is using a dental pick, a box and a half of Q-tips and about an hour and a half of time. The guys behind M-Pro 7 realized that structures like these are a pain to clean, and have come out with a foaming gun cleaner to take care of that particular problem . . .
The bottle uses a push operated pump to get things moving, which differs from the Break-Free CLP foaming cleaner offering (which is in a pressurized aerosol bottle) and means that it won’t explode if you accidentally puncture it. It’s not a major concern for most people, but if you’re planning on carrying a bottle in your range kit it might be a factor you want to consider. Also different from the Break-Free CLP product is that the cleaner is a pure white color and less greasy than the “I just poured this out of the bottom of my decades old toolbox” yellow liquid that Break-Free CLP uses.
Insert one end of the provided plastic hose into the front of the bolt carrier, give it a few pumps and the foaming solution quickly fills every nook and cranny of the object. Let it sit for a few minutes, then wipe off the freshly liberated dirt and grime with a clean rag and you’re good to go.
In my experience with the product, it worked perfectly. It cleaned out the interior of the bolt carrier without any issues and did a better job than I ever managed with my prodding and scrubbing. The only issue is the price: it runs about $3 to $4 more than the Break-Free CLP offering. But in my opinion, it’s worth the extra couple bucks.
M-Pro 7 Foaming Gun Cleaner
Price: $15.75 from Amazon
Ratings (out of five stars):
Overall * * * *
A little more expensive than the competition, but it works.