The P229 SAS Gen 2, features a new slide design, a melt treatment on frame & slide, SRT Trigger System, short trigger, SIGLITE Night Sights, and ergo polymer one-piece grip. The slide features an engraved Sig Sauer Custom Shop logo. The P229 SAS Gen 2 comes in 9mm, .357SIG, and .40S&W calibers. This P229 pistol from the Sig Sauer Custom Shop has gone through a radical dehorning process resulting in an ultra smooth, snag free profile that s ideal for concealed carry.