Laser sight for a Glock 19, it has a short rail in front of trigger. Cost limit $150.
Night vision scope for an AR15 5.56 for out to 300 yards or so. Price limit $1000.
Best sight for Baretta 1301 shot gun. 12 Ga
Are reflex sights good for pistols and shotguns?
You should get an ACOG from wish.com for the glock, you can shoot dinner plates at 300 with one of their ACOGs and that glock
For the night vision scope, get the wish.com 1,000,000 candlepower spotlight. It's just as good.
For the scatter gun it's going to need to be AT LEAST 10 times zoom fo sniping, I'd just go to Bass Pro and buy the most expensive one
Hope that helps!