The P239 SAS Gen 2, joining the recently updated P229 and P220 Carry versions, features a melt treatment on frame and slide, SRT Trigger System, SIGLITE Night Sights, and black polymer grips. The slide features an engraved Sig Sauer Custom Shop logo. The Generation 2 SAS is available in a Nitron or Two-Tone version. The P239 SAS Gen 2 is chambered in 9mm with a 8+1 capacity. This P239 pistol from the Sig Sauer Custom Shop has gone through a radical dehorning process resulting in an ultra smooth, snag free profile that is ideal for concealed carry.