This video demonstrates the use of the Magna-Matic CRT tool for cleaning carbon fouling from AR-15 style bolt carrier groups. It provides a two-in-one solution, with a reamer for the carrier interior and a scraping arm for the bolt tail. Regular use of this tool is highlighted as essential for preventing rifle malfunctions and ensuring reliable cycling. The CRT5 is for .223/5.56 platforms, while the CRT25 is for .308/7.62x51mm AR-style rifles.
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