So, I picked up a Colt M-4 Match Carbine over the weekend. I realize that I will have to replace the non-collapsing collapsing buttstock and I was wondering how feasible it is to swap out the match muzzle break and replace it with a conventional A-2 Birdcage. Does it just need to have the pins knocked out and unscrewed, or am I SOL? Any advice would be appreciated.