Instruction: Given a question and its related document, determine if the question is answerable by analyzing the information in the document. Output yes if the document addresses the question, or no otherwise.

Input:
Question: Will this fit the Z11?
Document: Loose Fit but compact. . For this price it's an OK laser. Battery life a bit short. Zeroed as it should.
kinda flimsy but what I expected, didnt fit my gun. I will keep it and try to make it work
It works. extremely tight fit on my c11. definetly not the highest quality laser on the market. But for the price and what it is. It'll work.
I have a crossman co2 pistol, c11. Was a tight fit, can't get it off now but the laser is strong. Having a hard time adjusting the aim.
Works well for my Baretta Elite II. Tight fit and adjustable for a perfect shot. Bright red laser as well. Definitely worth the price!
They fit nice and tight on my C31. I will never have to worry about it going off-center because it comes with an Allen key and you can use it to adjust it vertically/horizontally. Comes with batteries already too.
Yes, this will fit on weaver rails, IF you can slide it on from the end AND the rail is beveled AND nothing sticks up in the way. Only then will this work. Unfortunately it won't work for any of my guns.The laser seems nice and bright, thougb. :P
Some previous review said that the sight worked on a nine mm. It fit on my glock, but was coming off the rails after 6 shots. I can fit it on a BB gun that I have and I might be able to modify the laser to be able to stay on the 9mm.
I bought this for a Smith and Wesson M & P 22LR pistol which has a weaver rail. The problem with these sights are that you cannot tighten the fit, they are just a slide over. Impossible to stay on zero without a clamp. I use it to amuse the dogs at this point.
Now i cam slide the complete sight off the gun, put it back on and its dead on,  it dose fit snug and dose a good especially on a blowback that dose kick quite a bit for its size. This sight was above my expectations for such a low price,,Thanks Crosman and Amazon...
Answer: no