Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: Does it fit a M1A1?
Document: its a perfect fit for my cybergun thompson m1a1. i have the &#34;chicago typewriter&#34; version, with the drum mag,and didnt like the drum mag. so i decided to replace it with a stick mag. its perfect! no complaints! and it arrived quickly and with no hassle. :)
you don't have to change mags very often when you have one of these,  makes playing airsoft a non stop blast
this is a prettey good magazine I didnt know you had to wing it every 50 or so shots but this is still better than the 47-58 round one it came with and it holds more like and if you have a cybergun thompson you should definetely get this
i bought a cybergun thompson m1a1 and it came with a 300 round clip and upgraded fps as a bonus and i got an extra clip for the gun. This clip is also full metal and is very sturdy and crisp. i think it holds more than 300 rounds, which is pretty good since i now have two clips and i dont have to load up a lot of bb's when i go into airsoft war.
This magazine works with the Cybergun ThompsonM1A1 and fits the receiver better than the magazine that came with the gun. All metal with hi-cap wheel on the bottom, this magazine is a great addition to a great gun.
This magazine is not the best but it is still worth buying for a thompson AEG. It holds 380 bbs. The normal magazine that comes with the gun only holds 47 bbs. The problem is that you have to wind it a lot.
The fits in the gun nice and seems to feed the bebes  in ok. I was quite satisfied the way it works
So far, my son loves the magazine...it has a huge capacity and is all metal. Much better than the magazine that came with his original gun. Thanks!
It would be better if instructions on where to load it.I had to find for myself where the back part opens toload it. If you load if with a speed loader it will notwork at all. And you will need the turn the dial onthe bottom very often to keep it loading right.All in all it's a good buy.
I got this extra mag to replace the 47 round one i got with the gun. It works well and fits smoothly. You have to wind it alot but its worth it. Im happy with my purchase
Answer: no