I have had my M4 for about 2 weeks, LOVE IT. I have a Benelli field stock that will be here any day now, just don't care for the pistol grip stock. I do want to do the full length mag, so my question is, since I have taken off the dastardly pistol grip stock and will be adding a US made full length mag, along with a US made follower,do I need to change one or two more things to be in compliance I have read numerous posts and they are as clear as mud.
Thanks,
Daryl (cwmoss)