Description: Magna-Matic Defense AR-15 Carbon Removal Tool. The CRT-15 is a professional gunsmith's tool for the removal of carbon build-up on the bolt carrier, bolt, and firing pin of AR-15 family rifles. This engineered tool features a "dead-stop" reamer that fits into the bolt carrier to remove the carbon from deep dead-end hole.
The adjustable arm of the CRT-15 is designed to function like a small hand-held lathe. The bolt is placed on the narrow pin, which it can rotate on, then when the arm is brought down onto the bolt tail its scraper edge removes the carbon as it is rotated. This design allows you to clean any bolt tail radius. The form tools in the industry cannot conform to the variance in tolerances of different bolt tail radii. (bolt tail dimensions vary between manufacturers) This sets the CRT-15 far apart from these inadequate form tools.
To increase the functionality of the CRT-15 they added scraper edges to clean the carbon off of the firing pin face. The hole that sits just behind the arm is where you drop the firing pin into. The face of the firing pin will rest on two small scraper edges. Simply rotate the firing pin with light pressure to remove the carbon build-up.
Reamer-style end removes carbon from bolt carrier of the AR-15 and M-16 family
Lathe-style end removes carbon from the bolt tail of the AR-15 and M-16 family