How is it going folks. If you haven't read in the new members area I'm Andy from buffalo and I have a new Bushmaster m4 carbine. I did not buy the optics ready unit(flattop I think its called), I purchased the cheaper 1k$ model that looks like this http://www.impactguns.com/store/media/bush_bcwa3f14m4iz.jpg . A friend of mine is getting rid of an eoTech 512 that he no longer needs because of an upgrade. I was interested in buying it off of him for my rifle. How easy is it to remove the handle and the triangular sight on the barrel. OR should I just remove the handle and leave the triangular sight on like this one http://www.lonestarairsoft.com/forums/photopost/data/500/M402.JPG ? Someone also told me that a gunsmith would have to do it for me. And would I need to buy rails for the eotech seeing I didn't purchase the optics ready model? ALSO One last question. If I wanted to not go with the eotech and go with a scope, does anyone know of any with a holographic dot or crosshairs in them? I'm a little confused and new to the rifle and accessories and modification of them, so any help would be greatly appreciated. Thanks guys.