the K100 with a scalloped slide and tighter fit. Target - An adjustable-sight version of the K100 featuring a micrometric adjustable rear and fiber optic front sight. X-Calibur - For 2012, a new model with a longer fluted bull barrel and scalloped slide was introduced. Felt recoil and front sight lift is noticeably reduced. P40/P45 - For 2013, a new larger grip frame sized to fit the .45 ACP cartridge was introduced. The P40 is chambered in .40 S&W, 10mm Auto and .357 SIG. The P45 is chambered in .45 ACP. Using the same rotary locking barrel system, and the same 108 mm barrel length, the larger-caliber guns use many of the same proven components of the 9mm models. P40L/P45L - For 2014, a 127mm/5-inch barrel and corresponding slide model was added to the larger caliber line up. The P40L is chambered in .40 S&W, 10mm Auto and .357 SIG. Q100 - A striker fired version of the K100 intended primarily for armed forces and self-defense. The Q100 has a 108mm barrel and the same modular grip as the K100. The initial version will be in 9x19. Q1/Q1S - A shorter slide and barrel than the Q100, either on the standard full sized grip (Q1) or combined with the subcompact grip shared with the P11 and P1S (Q1S). References External links Grandpower Homepage Instruction manual Modern Firearms Review of the STI GP6 (K100) from American Rifleman Military of Slovakia 9mm Parabellum semi-automatic pistols