Arrow rest, I reccomend a QAD drop away, a peep sight, a pin sight, a quiver that attaches to your bow for your arrows, string whiskers, stabilizer, limb savers, a D loop, a trigger release, and a wrist harness. That's all I have on my bow. that little chip you're talking about is called a kisser button, they may be nice, I don't know, I don't know anybody that uses one.