Rail Handguard

Will this fit on a Dboys M4 CASV airsoft gun?
i was wondering if this SIR rail system would fit on a CASV airsoft gun…
http://airsoft-club.com/shop/external-upgrade/handguard/boys-arms-style-sir-system-rail-handguard-for-m4-aeg
The stock front rail system that comes with the gun is flimsy, heavy, and wobbles a lot…
The battery box for the CASV is loose and takes up the whole side of my gun.
I would like to fit the battery inside the SIR rail and was wondering if i could do so.
link to Dboys M4 CASV airsoft gun (the one that i have)-
http://www.airsplat.com//Images/ERM-BI-M4-3581.jpg
the link to the SIR rail is at the top
Thanks
First of all, I love the fact that you get your items from Airsplat.com seeing as how they are really the only honest upfront and reliable Airsoft carrier out there, so Kudos to you! That being said, typically with a model that is made by the same manufacturer as the accessories you are wanting to get for it, it will most likely be compatible. BUT airsoft is about trial and error and the only way to find out it to try OR you can look up videos on YOUTUBE to see if anyone has posted anything about it. I honestly think it will be compatible, otherwise if you are looking to get a new gun with and SIR rail, get the JG SIR model from Airsplat. Reliable and a great gun.
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