You would have to define "High quality". Gamo is a reputable maker of air guns. The laser sight sold under their name is suitable for air guns, and retails for about $39. Laser sights made for high powered handguns, such as the Crimson Trace laser grips for a .45 caliber pistol retail for about $390.
Yes it has a momentary switch that is on a cord. See the link below to see exactly what it includes
I have not tried this particular combination, but the 459 is the same size as a regular 22 scope mount. (I own 2 of them) I've mounted scopes on both of these mounts and I see no reason why the Gamo 650 shouldn't fit.
Mount for a scope.
You need a Weaver Side Mount #2 (which is the base). Weaver also make 1" side mount rings that mount onto this base. That's what I have on my .222 Savage 340.
weaver refers to the type of scope mounts the scope uses. a weaver scope can mount on any rail size.
A weaver number 2 base and your choice of weaver side mount rings, midway has both. Total cost for both pieces is around $50.
The are made by different companies.
The Savage springfield 840 is the later version of the Saveage 340. Midway USA has a #1 weaver mount for the 840. Under savage 340 they also offer a B-square mount with rings that has better reviews than the weaver mount.
Hello: Weaver offers a scope base for the Marlin Model 512 Slugmaster, contact Weaver for a complete package. Thanks side scope mount (Weaver 10M)
76.99
Scope mounts that mount on the left side of the receiver using the four screw holes are available from Weaver.
You mount it the same way you mount a scope. The rifle or gun must have an 11MM or Weaver mount on the barrel for the red dot to attach to.