Brownells 12 Gauge 5/16-27 Female Double-Up Bore Mop, Pack of 12

The dual-action cleaning system for 12 Gauge shotguns includes an ultra-absorbent bore mop and a debris-scrubbing bore brush that can be screwed together, allowing for a single-step cleaning process. Users can double them up in their preferred sequence or incorporate an additional mop or brush for enhanced thoroughness in cleaning. Compatible with 12 Gauge shotguns Mop - constructed with wound cotton fibers, featuring a twisted steel shank and an aluminum coupling, designed with a 5/16-27 thread specification for enhanced durability and performance