Hey all,
Been thinking about a 9mm build for a while and finally ordered a New Frontier Armory C-5 lower (accepts MP-5 magazines). I'll be adding their upper receiver for compatibility with the mags but after that, I don't know squat. Some I am wondering what are the go to parts as far BCG, buffer, spring, receiver extension and barrel? The build will be a pistol configuration with either a SBA3 or Tail Hook Mod 1.
C5LOWER.jpg
Thanks in advance.
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