The Sig-Sauer P-250 is without exception the most versatile pistol made today. With its unique fire control unit you can change calibers and size of the pistol in less than a minute.
    Okay, so what is a  fire control unit?


Photos courtesy of Tactical-life.com and Sig Sauer

    It is a stainless steel unit that includes the trigger system, the hammer, a few springs, and the slide catch.
    That’s it!
    I know it’s different and a little scary that it is so simple, but it is nothing short of an engineering gold metal. So you can pop that little unit in and out and change caliber and size.
    Talk about an easy way to keep the pistol clean - this is a no brainer! Why doesn’t everybody have one?
    With this design there is one must and that is it is a double action trigger only. The easiest way to understand this is that the trigger pull is like a revolver trigger pull - you squeeze the trigger the hammer comes back and it reaches a point where the trigger breaks forward and it goes bang.
    The big deal is that a pistol that does that is not supposed to look like a semi auto pistol and have a magazine. So some have an expectation that the trigger pull should feel like their Glock or Ruger semi autos, so they say ‘it’s a great pistol but I hate the long trigger pull!’
    The trigger pull is long and sooo smooth! It is different, but awesome.
    You can pick one up for around $450 and buy what is called an exchange kit to change size and caliber direct from Sig for about $225.
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