Originally Posted by Nickaayyy
Maybe the gas gonna be in the stock, some paintball marker started to do this so it's less ugly (they put an 8oz tank in it, if my memory is good)
Then again, this makes it impossible for future owners to change their stock for a RS one or aftermarket one. It's not very user-friendly if they decide to pull that off. Also paintball markers do not have recoil like most GBBRs on the market.