I know that we all love having fun shooting our AR's but when its over, its time to get to the business of cleaning. Having a specific tool like the CAT M4 is an invaluable piece to have so you can get into the nooks and crannies of your bolt carrier group. With this tool you can clean your firing pin and the chamber area where the firing pin sits. It can still be done without this tool, but with a CAT M4 handy it makes your life easier. Has anyone use this or similar AR15 cleaning tool? Read...