I just got off the phone with the CA DOJ, to confirm a call I got from them, in answer to the above question. They say I am good to go in converting a rifle (was VERY specific about that) receiver to using a 10-14" barrel and hand held design grip, no buttstock. I asked very specific questions, in my email (that she is replying to) to insure this is NOT an SBR or NFA weapon, as a result of this.

She is in the process of sending written confirmation on that.

So, with that question answered, I have a question about converting the trigger assembly to mid mount, or wondering how the stryker does it? Also, is the stryker (factory) a single shot or blind mag?

Any links with pictures, details is much appreciated. Not sure what caliber I would go with, at this juncture, or even what the target would be, paper or flesh. But that is just a matter of switching the right parts around.