RobArm hasn't answered my email Q yet, why doesn't the version 1 on the website have the online pricing while versions 2 & 3 do. I was wanting to know the price of a stripped down version of the version 1 would be. Also if one were to get the M4 adapter w/o a stock, is there an after market folding stock out there that could attach to it? or is the folding part on the wrong side?