The Dewey AR-15 Chamber Swab is a chamber-specific cleaning brush from Dewey (Dewey part no. MP-16), shaped to reach AR-15’s chamber area rather than just the bore. A standard bore brush is built for a straight cylindrical pass and does a poor job scrubbing the shoulder and locking-lug recesses of a chamber, which is exactly where carbon buildup collects hardest after repeated firing. This brush is sized and shaped specifically for that chamber geometry instead. Regular chamber cleaning is one of the more overlooked steps in a maintenance routine, and skipping it is a common cause of sluggish extraction over time. Pair it with a bore brush and rod from our gun cleaning supplies lineup for a complete cleaning pass.

Key Specifications

• Built to fit the AR-15 specifically, rather than a generic one-size part that fits loosely.

Frequently Asked Questions

Will this fit my AR-15? Yes, it’s built specifically to fit the AR-15; it is not a universal-fit part.

Is this the same as a bore brush? No, it’s shaped for the chamber area specifically and should be used alongside, not instead of, a standard bore brush.

Buy the Dewey AR-15 Chamber Swab

Add the Dewey AR-15 Chamber Swab to your cleaning kit through our gun cleaning supplies lineup. It’s a direct-ship accessory, no FFL required, and our Lubbock, Texas team is on hand if you need help matching it to the rest of your gear.