Sig M400

Discussion in 'AR15/10 Rifles' started by Standbanger, Jul 2, 2014.

  1. Standbanger

    Standbanger Well-Known Member

    Messages:
    77
    Joined:
    Feb 8, 2012
    I have a Sig M400 that I would like to change barrels on. I would like a twenty inch heavy barrel no flash hider. Is this possible what barrel mfg. do you recommend.