The Otis Bore Brush Set (brand part no. FG317NB) covers .17 HMR, .177 caliber, and .177 WSM airguns with brushes measuring 1 inch in length, sized to allow limited breech cleaning. Otis brushes use a proprietary Tufcor core wire that resists corrosion and holds a tighter twist for better bristle retention and longer brush life, with twice the fill of many other brushes and bristles running right to the end. This set includes two brushes per package, one bronze and one nylon, giving shooters a choice between aggressive fouling removal and a gentler nylon pass.

Key Specifications

• Built for .17 HMR, .177 caliber, and .177 WSM airguns.
• Measures 1 inch in overall length.
• Uses a 5-40 inch thread pattern for compatible cleaning components.
• Includes 2 brushes per package: one bronze, one nylon.
• Uses a Tufcor core wire for corrosion resistance and better bristle retention.
• Uses twice the bristle fill of standard brushes, with bristles running to the end.

Frequently Asked Questions

How many brushes are included? Two per package, one bronze and one nylon.

What calibers does this brush set fit? .17 HMR, .177 caliber, and .177 WSM.

Buy the Otis Bore Brush Set

Get long-lasting bore brushes from Otis Technologies. Browse our full range of gun cleaning kits and supplies and order from our Lubbock, Texas gun shop for fast, insured shipping.