...well if you go "old school" make the gun a "throwback", use the aforementioned induction pad, up the sleeve micro FO line, connected to a UDC on the mask that feed to the display, issue solved. Yeah, you may get strange looks from others, but at least your gun is no longer vulnerable to wireless tampering.
The issues with the laser sight is you also can end up "painting" your own position, it's affected by smoke/fog, and you only get a +1 to accuracy. With some guns, (especially pistols and shotguns) you need all the bonuses to accuracy you can get.
It is interesting in that in the old rules it was described that all the "brains" (including calibration for local conditions) for the smartlink were in the gun (hence the double weapon cost for modification).