I agree with all the others. Another note, green lasers do not work real well in colder temps. Not saying don't do it, just noting the fact. If it were me, I'd look at that rechargeable "Genesis" model from Lasermax. I just bought a red rail master from CT. They make a green too. cool little laser
Bought a G-Lad from Sig Sauer, stopped working first time out and I was shooting a P556. Low recoil, and it broke. POS, don't buy it.