Dark matter dlc bcg - Walker Defense Research Dark Matter High-Polish DLC Bolt Carrier Group

I have this BCG in a 300 blk. It is usually suppressed. It has run flawlessly to date, and has been a breeze to clean. I usually use a little CLP, but I think I could just use a rag and clean it as well. Price is a little steep, but thought it was worth a try. I will probably buy another for a suppressed 5.56, 11.5 Inch.