Otis Technology 5.56mm Chamber Brush FG-367
Otis Technology
$4.69
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Otis Technology
Otis Technology 5.56mm Chamber Brush FG-367
The Otis Technology 5.56mm Chamber Brush is a purpose-built cleaning tool designed to deliver a thorough, deep clean of the chamber, neck, shoulder, and star chamber on AR-15, M4, and M16 rifles chambered in .223 Remington or 5.56 NATO.
- Aggressive bronze bristles scrub the chamber neck and shoulder effectively
- Steel bristles at the base clean the star chamber and locking lugs
- Compatible with .223 Caliber and 5.56 NATO chambered rifles
- Standard 8-32 thread fits most cleaning rods and systems
- Durable construction built for repeated, heavy-duty use
- Compact design reaches areas standard patches and rods cannot
Who This Is For
This chamber brush is an essential addition to the cleaning kit of any AR-15, M4, or M16 owner who demands a truly clean firearm. Whether you're a competitive shooter, a law enforcement professional, or a dedicated range enthusiast, the Otis 5.56mm Chamber Brush ensures that carbon buildup, fouling, and debris are removed from every critical surface inside your chamber — helping maintain reliability and extend the life of your rifle.
Specifications
| Brand | Otis Technology |
|---|---|
| Caliber Compatibility | .223 Remington / 5.56 NATO |
| Thread Size | 8-32 (Standard) |
| Bristle Material | Bronze (body) / Steel (base) |
| Intended Use | Chamber, neck, shoulder, and star chamber cleaning |
| Compatible Platforms | AR-15, M4, M16 |
| Country of Origin | USA |
Frequently Asked Questions
What makes this chamber brush different from a standard bore brush?
Unlike a standard bore brush that is designed to travel through the length of the barrel, the Otis 5.56mm Chamber Brush is specifically engineered to clean the chamber area of your AR-15, M4, or M16. It features a dual-bristle design — bronze bristles that scrub the chamber neck and shoulder, and stiffer steel bristles at the base that aggressively clean the star chamber and locking lug recesses. These areas are notorious for trapping carbon fouling and are often missed by conventional cleaning methods.
Will this brush work with my existing cleaning rod or Otis kit?
Yes. The Otis 5.56mm Chamber Brush features a standard 8-32 thread, which is the most common thread size used on cleaning rods and systems throughout the industry. It is fully compatible with Otis Technology cleaning kits as well as most other brands of cleaning rods that use the 8-32 standard, making it a versatile addition to any existing setup.
How often should I use the chamber brush when cleaning my AR-15?
It is recommended to use the chamber brush every time you clean your rifle, particularly after range sessions. Carbon and fouling accumulate quickly in the chamber, neck, and locking lug area of AR-platform rifles and can negatively impact reliability and headspace if left unaddressed. Running the chamber brush through a few rotations after applying a quality solvent will help break up and remove stubborn deposits before they harden and become more difficult to remove.
- caliber:
- 5.56MM
- Type:
- Chamber Brush
- Material:
- Steel
