Perst 3 series is a great option to avoid the USA greed over laser technology. Fuck all these DBAL lovers, they are probably the same people who keep TNVC in business.
Uh, yeah, TNVC has some of the best CS in the business. And they don't blow smoke up their customer's asses. I think they're among the best in a very cut throat industry, an industry that tried to sell me "NASA rated PVS14's" at one point. Yeah. NASA. And Vic is regularly on here, patiently answering the same goddamn questions each week with same exuberance he exhibited years ago when I bought mine. And did I say they have stellar CS? They have stellar CS.
Now I don't know about the Russian shit, I do know it's pretty simple to make one of these if you have the means to do so, so it's hard to fuck up unless you're just cheap. The prices definitely make one worth trying, but after that it needs to be reviewed really good on here. I'd like one along those lines if it holds up.
Finally, for lasing a target to shoot with an AR, 300m is about where most zero it on a rifle with a 300m zero. That way it'll be pretty close to center all the way out to 300 and bit high at the max ordinate around 225m or so. So if the laser maxes out here, no big deal really. And I've taught plenty of SDM's to zero PEQ2's and PAQ4's at .7mW and it works just fine in all but the absolute worst conditions (lots of smoke or fog, shit like that).
If you can afford it and you can find one that's not stolen (which means you know all the agencies to call and ask, etc.) then a PEQ2 is hard to beat if you have the real estate for it. For $2350 a member has a PEQ16 for sale on here now. I'd snatch it up if I had the money to spare on it and wasn't moving. Smaller than a 15, it has all three laser outputs including the illuminator and color laser slaved to one output for easy zeroing and it has a built in white light illuminator. The A model uses an incandescent and the B model uses an LED but I bet changing from incandescent to LED wouldn't be too hard. Anyway, that's about the best you can find for an SBR at the moment that I'm aware of. A PEQ2 can be had for 1/3rd the price though.
For as little as it gets used, I tend to just put Surefire 400V lights on SBR's anymore. Small, light, enough power to do what I'm talking about. You can also get a MeproMor reflex sight that uses batteries, tritium and fiber optics plus has an IR and red laser, both 5mW (which IMO is about perfect for a weapon fired laser pointer) slaved to the dot sight. It was intended for Israeli SF and it's a decent sight worth a look, may be able to get the laser and sight all in one.