Sig Sauer P250 Full Size, with Sub-Compact X-Change Kit and Grip Module, 9mm, Nitron, SigLite Night Sights,

The Sig Sauer P250 Full Size 9mm Nitron with a Sub-Compact Caliber X-Change Kit and Grip Module. Both have night sights, nitron finish and one magazine for each Grip Module. One Fire Control Unit, but two different size guns with a quick change of the X-Change Kit.