I thought of the cheap ones too, but decided I'd rather spend more once, than less once, and more later. I got the GG&G grip. It is shaped like the KAC, but is slightly larger in diamter than the KAC, though not as large as the Tango Down. It also has a storage compartment unlike the KAC, which also is not as large as the TD (I have 2 AA batteries in it). It is also machined rather than molded like the other 2. I'm in no way saying it is better b/c I know the others are high quality grips. To each his own,epesically with their own money, I'm just trying to point out the differences. The GG&G seems plenty durable. While I don't shoot on FA, I do bear down on it pretty hard. I've shot enough to get my rail uncomfortable to touch, but the grip was fine, warm, but fine. I don't know how well the others resist heat.