The Heckler and Koch 81000111 is a finely-crafted firearm with a caliber of 9 mm x 1. It features a balanced dimension with a total length of 7.34 inches, a height of 5.41 inches, and a width of 1.32 inches. The barrel length is impressive at 4.09 inches, and a sight radius of 6.38 inches lends to accuracy. Despite its robustness, it weighs just 25.56 oz when the magazine is empty, making it easy to handle. The magazine capacity facilitates 17 rounds, providing ample firepower for any situation. The trigger pull is calibrated at 5.4 lbs, with a trigger travel of .24 inches and a return travel of .12 inches for a seamless firing experience. The barrel features Polygonal 6 grooves with a right-hand twist. The twist is calculated at 1 in 9.8 inches, enhancing the performance and trajectory of the fired rounds.