Birchwood Casey

BIRCHWOOD CASEY MSR CHAMBER BRUSHES HELPS REMOVE COPPER, CARBON AND LEAD FOULING FORM RIFLE CHAMBERS. THREAD SIZE 8-32. BRONZE BRISTLES SCRUB THE CHAMBER, NECK AND SHOULDER OF A MSR. THE STEEL BRISTLES AT THE BASE SCRUB THE STAR CHAMBER OF THE LOCKING LUGS ON A MSR.