Otis Technology115727171
Otis FG368HT 7.62mm AR Chamber Brush - 8-32" Thread, 1" Bronze/Steel Bristles$5.08
Availability: In Stock
Current Stock: Out of stock
The Otis FG367HT 5.56mm rifle chamber brush is purpose-built for deep cleaning the tight, hard-to-reach chamber of your AR-15, M16, or M4. Unlike general-purpose bore brushes, this specialized chamber brush features a dual-bristle design that tackles the unique geometry of the .223/5.56 chamber — where carbon and fouling accumulate fastest and matter most. If you're serious about maintaining accuracy and weapon reliability, this brush belongs in your cleaning kit.
The FG367HT uses aggressive bronze bristles to scour the main chamber walls, neck, and shoulder — areas where standard brushes can't develop enough contact. The steel bristles toward the base do the detail work on the star chamber around the locking lugs, where small debris and deposits hide. Combined, these materials deliver the kind of aggressive scrubbing you need without damaging the hardened steel chamber walls.
Built with a standard 8-32" thread, it fits directly onto your Otis cleaning rod system or any other 8-32 threaded rod you already own. The 1" working length is sized specifically for .223/5.56 chamber geometry — not a compromise design stretched to work on multiple calibers. That focus means faster, more effective cleaning and less guesswork in the field or at the bench.
| Caliber Compatibility | .223 Remington / 5.56 NATO |
| Thread Size | 8-32" |
| Brush Length | 1" |
| Bristle Material | Bronze and Steel |
| Intended Use | AR-15, M16, M4 chamber cleaning |
Yes. The FG367HT uses a standard 8-32" thread, which is the industry standard for Otis cleaning rod systems and compatible with other 8-32 threaded rods.
The FG367HT is designed for .223/5.56 NATO chambers found on AR-15s, M16s, and M4 platforms. It is not suitable for other calibers.
The aggressive bronze bristles handle the main chamber surfaces. The steel bristles at the base are designed to clean inside the star chamber around the locking lugs, where standard brushes can't reach as effectively.
SKU: 115762952 • Width: 1.6in • Height: 1.2in • Depth: 5.3in • Weight: 0.06oz
Availability: In Stock
Current Stock: Out of stock
The Otis FG367HT 5.56mm rifle chamber brush is purpose-built for deep cleaning the tight, hard-to-reach chamber of your AR-15, M16, or M4. Unlike general-purpose bore brushes, this specialized chamber brush features a dual-bristle design that tackles the unique geometry of the .223/5.56 chamber — where carbon and fouling accumulate fastest and matter most. If you're serious about maintaining accuracy and weapon reliability, this brush belongs in your cleaning kit.
The FG367HT uses aggressive bronze bristles to scour the main chamber walls, neck, and shoulder — areas where standard brushes can't develop enough contact. The steel bristles toward the base do the detail work on the star chamber around the locking lugs, where small debris and deposits hide. Combined, these materials deliver the kind of aggressive scrubbing you need without damaging the hardened steel chamber walls.
Built with a standard 8-32" thread, it fits directly onto your Otis cleaning rod system or any other 8-32 threaded rod you already own. The 1" working length is sized specifically for .223/5.56 chamber geometry — not a compromise design stretched to work on multiple calibers. That focus means faster, more effective cleaning and less guesswork in the field or at the bench.
| Caliber Compatibility | .223 Remington / 5.56 NATO |
| Thread Size | 8-32" |
| Brush Length | 1" |
| Bristle Material | Bronze and Steel |
| Intended Use | AR-15, M16, M4 chamber cleaning |
Yes. The FG367HT uses a standard 8-32" thread, which is the industry standard for Otis cleaning rod systems and compatible with other 8-32 threaded rods.
The FG367HT is designed for .223/5.56 NATO chambers found on AR-15s, M16s, and M4 platforms. It is not suitable for other calibers.
The aggressive bronze bristles handle the main chamber surfaces. The steel bristles at the base are designed to clean inside the star chamber around the locking lugs, where standard brushes can't reach as effectively.
SKU: 115762952 • Width: 1.6in • Height: 1.2in • Depth: 5.3in • Weight: 0.06oz