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caliber conversion kit

  1. Classifieds
    For sale is a three-piece caliber exchange kit for the Sig Sauer MCX. Use it to convert an MCX to 300 Blackout. The kit includes: 16" 300BLK Threaded Barrel with manually adjustable gas block/piston system Carbine length aluminum handguard 300BLK bolt All parts are take-offs from a brand new...
  2. P250, P320, & P320 X-5 Pistols
    I have a full size 9mm P320. I'm chomping at the bit to get the conversion kit to try out the .40 cal. Does anyone know when the kits will be available? I can't find anything on the Sig website about conversion kits except for the P250.