MPN: FF556BCGCNITRIDE / FF556BCGCNITRIDE-TiN
A full-auto (A.K.A. M16) bolt carrier installed in a standard semi-auto AR-15 will not make the gun fire full-auto.
The BCG does a lot more inside your rifle than just cycle rounds in and out of the chamber. The level of stress and pressure placed on the BCG is astronomical. That condition is something that should concern you. Now, if you're only interested in the occasional backyard blaze, don't worry about it, just run stock. However, if shooting is a passion, you shoot competitions, or your rifle may mean your life, then you should pay attention.
The Faxon Firearms M16 Bolt Carrier Group is rated for full-auto fire. Don't let that scare you. That rating doesn't mean you need some special license to have one. The M16 designation means that the BCG carries a more substantial firing pin, and it has more mass than a standard BCG. This extra mass will slow down your guns cycle rate and prove more reliable. Many competitive shooters run the M16 BCG because it works.
There are a butt-load of choices when it comes to a BCG. However, the Faxon Firearms M16 Bolt Carrier Group is without equal. For instance, Faxon machines the bolt out of 9130 steel. Then they heat treat, nitride finish, and put it through magnetic particle Inspection. Faxon Firearms is known throughout the industry for their attention to detail. In your world, the rewards for this devotion are apparent. First, the BCG is going to be flawless. Second, the heat treat and nitride finish gives your new BCG a surface that is very hard and corrosion resistant. You won't be disappointed with your Faxon Firearms M16 Bolt Carrier Group. It is going to run longer, smoother, and deliver consistent cycle rates in your gun.