Anybody that sees that hodge-podge of stuff on top of your rifle is going to think you are some kind of newb, trust me on this. It is bad enough that many stick all kinds of semi useless stuff on their rails like it is going to make it look like some fantastic tactical rifle. In fact it is more like someone who goes down to Pep Boys and buys some new knick-knack every week or so to stick on his car, like mud flaps, chrome fender trim, LED lights and junk like that. In fact much of that rifle stuff goes on for forum pics and then goes back in the drawer. I admit having a couple of lasers, tactical lights, vertical grips, bipods, and even a red dot scope with a laser built in but in fact except for some specialized purpose that stuff stays in a drawer also. I am more concerned with how the gun performs not how it looks. So I concentrate of triggers, specific scopes and/or red dots, magazines, and better basic parts like stocks and such.
Forget lasers. What they really do is tell a perp that someone is after them. And no matter how you mount them there is going to be only one range point where the laser will cross over the guns aiming point such that a bullet will actually go where you point the laser at.
If you want it for home use get a low power tactical scope (1-4x or 1-6x) with illuminated crosshairs and an LED mountable light with both steady and strobe output. Lasers look good on TV/movie so they always use them there. But for the same reason most directors use fullflash blanks, because it looks cool on screen.
If you want a cheaper scope that works look at the BSA Sweet 22 3-9x40AO. Adjustable parallax from 15-175 yards, and bullet drop compensation for 36, 38, and 40g .22LR rounds. All for about $60 in the older version new. Better quality would be a Mueller APT or APV.
you don't need lots of power either. Multigun competitors routinely make shots to 300 yards with nothing more than 1-4x24 tactical scopes on a .223 (I use a 1-6x24 on my 3-gun AR). But my competition AR15-22 normally only has a dual color reflex red dot sight on it. I do have a quick release mount with a 1.5-4.5x32 scope if needed. It is enough for my club's Metallic Silhouette match. For home defense a tactical shotgun is a much better choice.
