I have one, for my Stag 10...currently have not used it yet but planning to shortly as I just got in 400 rounds of 7.62
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Glass is perfect, the adjustments are external, not internal...hence the durability. The throw lever is very fast, and I can throw it back and forth without removing my firing hand off the pistol grip (even off-hand), something that is much more awkward and "hard" on a normal scope, and may require a larger throw lever adding additional cost and bulk.
Most people use the lowest setting and the highest setting on LPVOs (low powered variable optics), nothing in between anyways.
I find the 1.5x setting just fine and still can use it with both eyes open and with the recticle illuminated (many, many settings...from night vision to full recticle illumination to a very sunny day, daytime bright) it is just as fast as any red dot IMO. Your field of view is also really, really nice (wide) on 6x. On 1.5x the center dot is 3.5MOA (a good, fast size IMO) and on 6x it is 1.5MOA...also good for more "precise" work. The recticle is also etched into the glass, so it works fine if the battery goes down.
It IS a bit bulky and heavy...but don't forget the mount is built in (also don't forget that having to buy one separate mount adds a decent cost and some weight to other optic options) but also...man up? (not saying YOU, OP, just in general)...you don't get a 7.62 semi auto battle rifle/DMR rifle with a RIFLE length barrel and then add an optic to then go on and cry about weight.
If you want super light weight then get a shorter barrel length 5.56 AR15 with a red dot and then practice shooting it rapidly at pistol distances and feel good about yourself!!!
Most people are terribly out of shape and do not remotely work out or have a decent BMI so I if your active and decently fit, I wouldn't stress the weight too much. (flame suit on!!!)
...men half our size fought wars for years with (subjectively) lesser rifles weighing more then most of our modern stuff...did they cry over a few ounces here and there? NO!!! Especially if it gave them what our guns can and do...but I bet they also didn't huff and puff walking a mere 100 yards to staple a target up and never go get it at the end because they've tired themselves out shooting off a bench...? Sorry, side rant...my 2 local gun clubs are just filled with great, athletic specimens of "men" LOL.
To add...
Some people dislike ARMS mounts, but I found most just parrot others talking points about worn out, early 2000s models and have no real first hand experience expect maybe (again worn out) models in their time in the reserves 15+ years ago lol (modern ones are 100% fine if your rails are in spec)...and really how often/why are you constantly taking the optic on/off?
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The optic is also Canadian made, not Chinese (or Japanese for the "better" stuff) like 95% of optics...and just like Aimpoint optics made in Sweden, Canadians do not work for slave wages so they need to be paid properly as well, raising the units cost.
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I will update this thread once I put some rounds down range, hopefully this weekend or next...excited to try out the ballistic recticle which is done up for a mix of 150/168gr ammo out of a 20" barrel and measured in METERS, along with giving you 17" wide (man sized) ranging markers from 300-1000 meters. My Stag 10 has just a (just under) 19" barrel and I have lots of M80 ball, should be a fun time. Remember this is a combat sight, not a bench rest precision one.