I like and use the Vibra-prime,,,I made a video on it.....ck it out here; https://youtu.be/Da2sjLKtQOY?list=PLGIcbXKjB2nQyfhP6mcQv6ObUBGiAXpfw
there may be better ones, but i have to work from a budget on all my gun related adventures and I have to max out my bang for the buck and it works perfectly......Cmax