A firearm's chamber must withstand considerable pressure and use, as it takes the brunt of the explosion when the firing pin hits the primer. Because of this, it also tends to be one of the dirtiest parts of the weapon, since the carbon and powder can accumulate in the crevices around the chamber. The best way to clean this area is with a chamber brush. This small tool has many small, stiff bristles and attaches to the end of your cleaning rod so that you can reach tight spaces and remove stubborn debris. Chamber brushes are essential items to keep in your gun cleaning kit, as you will need one for each caliber and type of weapon you own. Below are answers to some frequently asked questions about chamber brushes to help you decide what you need.![]()
A chamber brush is designed to scrape away dirt, lead, and unburnt powder that stick to the inside of your weapon after you fire it. After putting many rounds through a firearm, the intense heat can almost bake these substances into the metal, which makes them difficult to remove with just a cotton cleaning patch. Instead, the stiff bristles on a chamber brush scrape away the material without damaging the metal.
While most chamber brushes have a uniform diameter for the bristles, some have longer bristles near the end where it attaches to the jag. This is meant to help reach into the wider part of the chamber on AR 15 and AR10 weapons to thoroughly remove any debris. Without this, part of the chamber would still have carbon and powder coating the metal. Over time, the buildup of debris can prevent the weapon from cycling rounds and firing properly, resulting in frustrating and potentially unsafe situations.
We have a wide variety of chamber brushes available in many calibers to help you find the perfect cleaning tools for your weapons. Check out the offerings from some of our top brands, including Hoppe's 9, Pro-Shot, and Otis Technology.