Glasshartt has found a fantastic tool to help clean the carbon off the face of the bolt and the inside of the bolt carrier. This thing takes almost all the work out of cleaning that hard to get carbon on the bolt face that you used to have to scrape with a brass scraper or let soak for hours in solvent. For $15 bucks this thing has saved me hours of cleaning time.
Here is a link where you can buy one: BotachTactical.com
KZ M4CRST Carbon Removal Super Tool
A single tool that can remove the carbon from both the bolt tail and bolt carrier with ease and precision. NEW Revolutionary Cork Screw Design makes carbon removal faster and more efficient than ever before.
Manufactured on state of the art CNC machines from the highest quality tool steel. Compact design is a perfect fit for your range bag or buttstock storage compartment.
• Fast And Highly Efficient Cork Screw Design Bolt Cleaner
• Firing Pin Cleaner
• Dual Scraping Edge Carrier Cleaner
• CNC Machined From Solid Bar Stock
• AISI SAE 0-1 Tool Steel
• Rockwell Hardness 36
• Black Oxide Finish
• 3.3 Inches Long
• Bead Blasted. Non Reflective Matte Finish