The first thing I do when I build a new lower is…put a Battle Arms Development BAD-ASS (Ambi Safety Selector) in it. Its seriously a must have! Most of your BAD-ASS packages will come with 3 different levers so you can swap them around and customize them to your liking. Well, with each set you buy that leaves you with an extra lever to tuck away somewhere. For those of you who have at least 2 levers left over Battle Arms Development has come up with an awesome option for you to be able to put them to good use.
You can now buy just the core and screws for the BAD-ASS and add it to your existing levers to create another complete BAD-ASS. You can choose to go with the standard 90 degree Core and screws for just $25.95 or this is also a great time to upgrade on the cheap to the 45 degree Core and screws for just $39.95. Whichever way you choose to go this is a sweet option for current BAD-ASS owners. You might want to pick up a selector detent while your there too. Click on the links below to get your own.