The product is a set of 6 Birchwood Casey chamber bronze steel cleaning brushes designed for deep cleaning and rust protection in guns. The brushes are durable and made of steel, making them ideal for removing tough residues and protecting the chambers from corrosion.

THREAD SIZE 8-32 HELPS REMOVE COPPER, CARBON AND LEAD FOULING FORM RIFLE CHAMBERS DETAILS 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.