I have CT's on quite a few pistols, Two years ago, I gave a few as Christmas gifts.......... Crimson Trace is the best way to go... They will hold zero, many others will not...
$300.00? not hardly... Check other sources, Midway, Brownells, Gun Shows, there is a guy out of OKLA that make several shows in south Texas and he always has super deals..Found his card, Best Defense, 405-517-6608, Ed or Jan Moore, out of OKLA City, OK..
CT had a deal not long ago where they would send you free batteries... Great Company... Great Product..
CT has a DVD that is a really good instructional tool "The Art of Survival"... Go to their website and request one.. or call them, they are free...1-800-442-2406
The best thing that I have experienced with Lazers is that on several occasions, they stopped an engagement before it got started... the presence of the the dot seems to inspire moments of mental clarity. not to mention low light use, and as we age, failing eyesight... great tool, can't say enough good about the product...