Instruction: Evaluate the answerability of a question by analyzing the related document, outputting yes if the document contains information addressing the question, and no otherwise.

Input:
Question: Can a compact "day" scope be mounted on the accessory rail?
Document: With a chop saw, I easily shortened it about 3/4" and re-slotted the Weaver rail to allow the scope to be mounted to the most rearward position. This was reasonably comfortable, but an additional 1" shorter would have been better.
For the price this is a solid scope. The optics are clear and the images are crisp at night. The focus ring is real handy. The built in IR illuimator works well although it only brightens the center of the image. I mounted an external IR illuminator and it lights the entire image. All in all works well for hunting coyote at night in Georgia.
I am enjoying using this night vision scope. It works as advertised. I have it mounted on my crossbow and I really should install an adapter to move the scope back about three inches. They way it is designed it sits high and forward and it's a little awkward to look through. It makes the crossbow a little top heavy and at 2 lbs. a lot heavier.
* Bulkier than a day scope but not horrible. * Not all that heavy. Not light by any stretch of the imagination but not a brick either. * Manual focus and diopter focus is nice. * Does not whine when running.Cons:* Generation 1 {Gen1} night vision technology is poor at best. It does work in the sense that you can see somewhat better in the dark than with just your night adjusted eyes. But don't kid yourself, this is low end NV.
the pin hole on the cover is supposed to allow sighting in during the day but a bright dot in the dead center prevent me from getting it sight in properly. The big fat cross hair wasn't helping either. And just when I thought I got it down it would be off by several inches @50 yrd when I fire a couple more shots. It normally take me no more than 3 shots to sight in a new scope so I returned mine...
I got this scope as an experiment in night vision, for hunting hogs and other nighttime pests. After years of flirting with NV gear, but too poor to own any, I wanted to try the best reviewed low end scope, as sort of a way to get my feet wet. Night vision rifle scopes are different than your run of the mill day time gear. I do plan to upgrade to a PVS14, Gen3 monocular very soon.
I heard too many hit and misses with ATN products and decided to avoid them . I looked at this scope and saw it had an adjustable objective ring in addition to the rear ring adjustment for $150 more..and it also has is a weaver rail on the other side (not shown) to mount an IR light or laser that the 1.5 does not have and its BLACK!!!! way better looking .
I milled out a slot for the bar and it was good. You can do it with a hand file without too much effort. It won't affect accuracy as long as you don't knick the rail true surface and mill the slot deep enough.5) I tried the scope on a bolt action Savage (sold by WalMart). The bolt would not clear the scope without adding a 1" riser mount.
This nightvision is great! I would highly recommend this to anyone who would like a solid NV scope for there home defense. There is a great crisp vision, I found it extremely easy to install, and sight in. My only wish would be a simple latch system for easy install - uninstall vs the screws for the pictanny rail.I HIGHLY RECOMMEND!U.S. MARINE - WAR VETERAN APPROVED
I,m giving this scope a 4 because I finally got it to work. I'll just summarize some important considerations. My first scope was replaced by Amazon because I could not get it sighted in on 3 different weapons. Amazon sent a replacement within 2 days.1) The scope is very heavy and the center is 2.7" above the rifle barrel center for a low rail mount. This means that you have to have a very solid mount that is repeatedly tightened until it holds after shooting.
Answer: yes