Otis Technology Bone Tool AR-15 – Multi-Function Carbon Scraper

The Otis Technology Bone Tool is a purpose-built carbon scraper designed to clean the bolt carrier group and hard-to-reach areas of AR-15 and M16 pattern rifles. Machined from a single piece of high-strength polymer, this tool features eight specific scraping surfaces that match the contours of the bolt, carrier, and firing pin—eliminating carbon buildup that can cause reliability issues. It's faster and safer than improvised metal tools that risk damaging coated or finished surfaces.

Includes integrated scraping edges for the bolt tail, gas rings, extractor recess, and firing pin channel. The integrated pin punch helps with field stripping. The tool's non-metallic construction won't scratch or mar parkerized, phosphate, or nitrided finishes. Compact enough to fit in a range bag or cleaning kit.

• Type: Carbon scraper / multi-tool
• Compatible Firearms: AR-15, M16, M4
• Material: High-strength polymer
• Features: 8 scraping surfaces, integrated pin punch
• Use: Bolt carrier group cleaning, carbon removal