I own two Sig Sauer P226s and have trained for days at the Sig Sauer Academy to gain proficiency. I recommend you get your guns and your training in 2018 whether it’s with a P226 or another make or model, or brand for that matter. I’ve always believed the best handgun to be the one you own and the one you’ve trained with. More on the Sig 226:
The P226 in SEAL service became known as the Mk. 25. The handgun was a derivative of the original Sig P10, a highly successful handgun in its own right, but updated with modern features. Like the 210, the 226 used the Petter-Browning locking system, which updated John Browning’s 1911 locking system with improvements made by Swiss engineer Charles Petter, including eliminating the barrel bushing and using a full length guide rod. The P226’s main competitor, the Glock 17, also uses the Petter-Browning locking system, as do many contemporary pistols.
The SEALs put in an initial request for eight hundred P226s and the first pistols, officially named Mk. 25, were fielded in 1989. The Mk. 25 has a 4.4-inch barrel, nearly half an inch shorter than the Beretta M9, and the handgun is chambered for nine-millimeter parabellum. The frame is made from a steel alloy, while the slide is made from stainless steel for increased strength, and the slide is finished in Nitron for corrosion resistance. The gun weighs two ounces shy of two pounds with a loaded magazine.
The Mk. 25 can be operated as either a single- or double-action pistol, and has a decocker for safely releasing the hammer without firing a round. Unlike the Beretta there is no manual safety—all of the mechanical safeties are instead incorporated into the fire-control system to prevent accidental discharge. The pistol magazine carries fifteen rounds in a double-stack configuration. While this increases the amount of firepower the Sig can dish out, it also widens the pistol grip, making it less ergonomic for individuals with smaller hands.
Read more here.