You can pick up a green gun sight lasers on ebay out of hong kong for 70.00 bucks . what most of the ebay sights out of hong kong do is sell the laser 40.00 then chg 30.00 shipping . that way if you return it you lose big time on the shipping chg. I have bought many in the past and I think they are about 25-30mw. some names of good ebay stores are airsoft grocery,scopeandlaser,airsoftshooting.the ones I have purchased all are daylite visible dots,and at dusk and darker the green beam shines futher than my eye sees.I do not buy out of the us any more but if you are intrested in some very decent quality ones to fit on a pistol are rifle mine start at 85.00 with a one year factory and it is all done here in theU.S. 225-664-7706 Tony [email protected]