Brownells' nylon bore brushes are sold in bulk for convenience and cost savings, featuring a one-piece, looped and wound steel shank for durability.
These brushes are designed to withstand aggressive cleaning agents that target copper and bronze fouling without scratching the bore, preserving accuracy.
Specifically for 22 caliber handguns, the brushes have an overall length of 2-1/8 inches and use 8-32 thread, except for .17 caliber which uses 5-40 thread.