Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: is this a wind up mag?
Document: i bought 2 of these mags for my Jing Kong m4 and for my Kwa m4 and let me say that feed great and they hold 450 bbs and this sixe from a normal high cap mag is about half inch so its nothing crazy but i have moved to using from 300 hi cap mags to these 450 mags they tend to fit better in the mag pouch
it would b nice if..... it didnt break while shipping so now i can pull the black metal thing out of the tan metal part. and now it just broke now if i spin the gear at the bottom of the clip nothig will go into the ready tube and it will make a licking noise and thats all if nothing broke this would b a really good clip
i love this product i use it for my tan G&G and i can't tell the diffrence between this one and the one that came in the box, it works great and there're no feeding issues
This magazine is exactly like the one that came with my G&G combat machine M4 Carbine (Tan). Literally identical. I can't tell them apart. As with any of the G&G M4 magazines, they lock in nicely, but there is some serious wiggle room. I eliminated most of mine with a few layers of electrical tape where the sides of the magazine meet the housing.
These are the best high cap mags I've found for my Scar-l, works with all my M4 style airsoft weapons. I would and do recommend these to everyone I know.
I use this for my Classic Army M4 and my M249 Para and find that it has not disappointed me like cheaper alternatives.
Answer: no