Just picked one of these up and had a few questions. The manual doesn't address them, so I thought I'd throw them up here first.
1. It looks like the barrel nut and delta ring are standard parts. I am considering going to a free float hand guard. Are standard AR-15 components interchangeable in this area?
2. Since the bolt has it's own spring, is the stock AR spring and buffer required? Removing it saves 4.5oz, but this rests the back of the M4-22 bolt carrier on the buffer pin. Is this OK? Less weight is better in my book if it's functionally acceptable.
3. It appears that the bolt catch/release in the stock lower doesn't work with this bolt assembly as it doesn't catch it far enough back to allow a mag to be inserted and the bolt dropped/round stripped. Is this correct?