SIG Sauer P227

The SIG Sauer P250 is a modular semi-automatic pistol chambered in 9x19mm, .357 SIG, .40 S&W, and .45 ACP. It features a unique serialized fire control module that can be swapped between different frame sizes. The P250 uses a consistent double-action-only trigger for every shot. This trigger pull is the same as the first shot on a traditional DA/SA pistol. The pistol comes in full-size, compact, subcompact, and carry configurations. It was designed for law enforcement agencies that wanted a single trigger system.

The Heckler & Koch HK45 is a polymer-framed semi-automatic pistol chambered in .45 ACP, introduced in 2007. It evolved from the HK USP45 but incorporates ergonomic improvements from the P2000 and P30 series, including interchangeable backstraps and an improved grip angle. The HK45 features a 10-round magazine, a 115mm (4.53 inch) barrel, and HK's O-ring barrel for enhanced accuracy. Its reduced slide profile and ambidextrous controls make it easier to operate than the larger USP. The HK45 is used by U.S. special operations forces and law enforcement tactical units.

The SIG Sauer P220 is a semi-automatic pistol first produced by SIG Sauer in Switzerland in 1975. It was the first of the legendary P220 series and served as the basis for the later P225, P226, P228, and P229 models. Originally designed for the Swiss military as the SIG P220 (SIG 75), it features a forged aluminum frame, a Browning-style locked-breech action, and a double-action/single-action trigger system. Known for its exceptional accuracy and reliability, the P220 was adopted by military and police forces worldwide and introduced the world to SIG Sauer's now-iconic pistol design philosophy.