
The Glock 40 MOS is a long-slide semi-automatic pistol chambered in 10mm Auto with a 170 mm barrel. It features Glock's Modular Optic System for mounting red dot sights directly to the slide. The pistol was designed primarily for hunting and competition shooting where maximum velocity and accuracy are desired. Its extended barrel and slide provide a longer sight radius and higher muzzle velocity compared to standard 10mm Glock models. The Glock 40 comes standard with a 15-round magazine capacity.
How does the Glock 40 MOS compare?
Pick any other firearm for a side-by-side spec breakdown.
Explore related weapons and popular picks, or compare their specifications with Glock 40 MOS.
The Glock 17 is a polymer‑frame, striker‑fired semi‑automatic pistol designed around a simple, robust "Safe Action" system that integrates three passive safeties. Conceived for law‑enforcement and military use, its 9×19mm Parabellum chambering, high capacity (17‑round) double‑stack magazine, and low bore axis provide a blend of reliability, lightweight handling, and rapid reloading. Its hallmark innovations include the use of high‑impact polymer for the grip and frame, a modular interchangeable backstrap, and a corrosion‑resistant Tenifer® coating on metal parts. The Glock 17 quickly earned a reputation for extreme durability, minimal maintenance, and consistent trigger pull, making it a benchmark for modern service pistols and a favorite among civilian shooters worldwide.
The AMT Hardballer is a stainless-steel, single-action semi-automatic pistol based closely on the John M. Browning-designed M1911A1. Introduced by Arcadia Machine & Tool (AMT) in the late 1970s, it was marketed primarily to civilian shooters, competitive handgunners, and outdoorsmen who wanted a corrosion-resistant 1911-pattern pistol at a time when factory stainless 1911s were rare. The Hardballer retained the proven short-recoil, locked-breech, tilting-barrel mechanism and single-action trigger of the Government Model, but substituted stainless steel for the traditional carbon-steel frame and slide. Standard models used a 5-inch barrel and adjustable sights, while the Longslide variant used a 7-inch barrel for increased sight radius and velocity. The model is best known for its association with the 1984 film The Terminator, in which a laser-equipped .45 Longslide appears. In the firearms community, the Hardballer is regarded as an early and influential stainless 1911 clone, though AMT’s reputation is tempered by inconsistent quality control, parts interchangeability issues, and occasional galling or reliability problems. It remains a collectible example of 1980s American 1911 innovation.
The EAA Witness is a full-size semi-automatic pistol imported to the United States by European American Armory. It is manufactured by Tanfoglio of Italy and is based on the CZ-75 design with modifications. The Witness offers interchangeable grip frames to accommodate different cartridge sizes. It is available in a wide range of calibers including 9mm, .40 S&W, .45 ACP, and 10mm Auto. The Witness has been highly successful in IPSC and USPSA competition shooting.