The SP5 was developed by Heckler & Koch as a semiautomatic civilian sporting pistol that matches the look and feel of the legendary MP5 submachine gun. - Designed and manufactured to meet the definition of a civilian pistol the SP5 is loaded with authentic features like a Navy barrel with threaded tri-lug adaptor paddle magazine release fluted chamber and chrome-lined bore. - The backbone of the SP5 is the roller-delayed blowback operating system which is legendary for its accuracy reliability and smooth shooting dynamic. Originally perfected on the Heckler & Koch G3 rifle it has been used on several other HK firearms still serving today around the world. - The SP5 is manufactured in Heckler & Koch’s Oberndorf factory in southwest Germany. It retains many of the critical elements of the MP5 including its precision-machined components and attention to detail. This high level of quality and workmanship is a result of making the SP5 in the same factory on the same lines and by the same workforce that has been making MP5s for years. - For more comfortable shooting the SP5 is equipped with an elastic bungie sling. The sling is easily installed by snapping it onto the sling swivel hardware located on the rear of the receiver. Using the sling makes firing the SP5 more stable and reduces fatigue. - Caliber: 9mm x 19 - Operating Principle: Recoil operated - Locking System: Roller-delayed blowback - Magazine Capacity: 30/15/10 rounds - Cartridge case ejection: Right side - Length: 17.8 inches / 452 mm - Width: 2.48 inches / 63 mm - Height: 8.66 inches / 220 mm - Barrel length: 8.86 inches / 225 mm - Weight (without magazine): 5.1 lb (2500 grams) - Magazine Weight Empty: 30rd-6.3 oz/180 g 10rd-3.5 oz/110 g - Trigger pull: 6.74-10.11 pounds-force / 30-45 N ( approximate) - Return Travel: .12 inches / 3 mm - Trigger Travel: .24 inches / 6 mm - Sight Radius: 13 inches / 330 mm - Barrel Profile/Twist: Groove/land profile 6 grooves right-hand twist - Sights: Rotary rear sights 4 positions