Preferred selector for builds - Battle Arms Development AR-15/AR-10 Enhanced Single Side Safety Selector

This is a great selector. A lot of milspec selectors are rather rough, and I suspect that has to do with the finish treatment. Every one of these I have gotten has been precisely drilled so your selector isn't off by some wonky degree, and the tough, deep, black finish is nice and smooth. The lever operates very smoothly and with just the right amount of force.

The only con to this is that it does not come with a detent or spring, so if you're buying this for a new build, that is something to consider. The same is true of the magazine catch - no spring or button unless you get the kit.

Either way, allows you to have a touch of customization and in my opinion, enhanced operation for a minuscule premium over the typical mil spec.

The guy that gave three stars even though he liked it probably eats crayons, and the other guy that was expecting the moon for this probably isn't happy with anything on his poverty pony.