Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: Will the (UTG Airsoft Quick Aim Electronic Dot Sight SCP-EDS21) or the (Daisy Electronic Point Sight 997809-613) fit or work with this gun?
Document: Why? The barrel on the Crosman 1377 wobbles back and forth and the red dot sight is secured to it. If you want a can plinker that will last you a lifetime and is incredibly accurate, purchase the Daisy 747 (or the cheaper 717) from Amazon. You will be glad you did.
I guarantee if you pull this out and point it at some knucklehead who breaks into your home in the middle of the night they are going to probably make a mess of themselves. :)  Little do they know how really tame it is in comparison to even a CO2 pistol. I would highly recommend this to a parent who wanted to teach their loved ones how to aim and shoot a gun just in case the situation were to arise that they would ever need to use one to defend themselves.
It's okay, decent grouping of about 1.5&#34;-2&#34;, but even after much sight adjustment, including filing & re-setting rear sight, POA is still off, so one has to adjust for that. The gun does work without issues other than that, though.
The Daisy hits harder and is slightly more accurate, but it just isn't as much fun. It might be the difference between long guns and short guns. I prefer short guns.EDIT: I ordered and attached the Crosman shoulder stock and that cured the gun from shooting high. I'm not sure whether it's the difference in hold or sight picture, but it's not shooting high anymore.
Which lead me to the Crosman replacement steel breech. This is a fantastic piece of hardware which replaces the stock plastic breech. It is heavy solid steel and twice the length of the original. When installed and mated with the barrel you'll think you have a new gun. And in fact you do because the steel breech has groves for dovetail mount accessories like sights and scopes. In addition to the steel breech I  bought a Crosman red dot sight.
Didn't have too high an expectation. At first sight, the plastic parts look quite cheap. However, the function, reliability and accuracy is great! Then discovered this is one of the hottest type of crosman.Installed scope adapter and a red dot scope. Wonderful.
Fit and finish are bad-REAL BAD, The front of the barrel moves up and down at least an eight of an inch, It is not held in place at the front. When the barrel drops down it also moves side to side, so the gun is pointed one direction and the barrel is pointed another direction, The front sight is mounted on the forearm below the barrel, the mount has a hole in it and the barrel just floats loose in this oversized hole.
In fact, the next day, my left hand was sore and my right hand had an open wound from the abrasive screw above the pistol grip.Well, I went shopping at Amazon again and a reviewer said to add the optional rifle stock and red dot sight. I did both and received them in the mail from Amazon and tested them.The optional rifle stock attachment from Crosman made it bearable to cock the pistol, but it did not make a considerable difference.
Nice pellet gun that packs good power. This is fun to target practice with this pistol. Construction seems very sold and pump is easy to work. I would recommend this product.
This is an accurate, powerful gun that satisfies my expectations.Suggestion... be careful when cocking the gun, as, if you are a strong individual you could possibly twist the mechanism during pumping and damage it. I believe this to be the weak point of this gun. Treat it well and it should last a long time.
Answer: yes