The HK45 by made by KWA is a fully licensed airsoft replica of the HK45 .45 Auto made by H&K. The airsoft version is made to be as realistic as possible, featuring an aluminum alloy slide and blowback action. This pistol comes complete with authentic H&K trademarks that are laser etched onto the slide and engraved into the grip. A unique serial number is also assigned to each individual pistol. This pistol uses the NS2 gas system which gives it great gas efficiency and power. The hop up is adjustable for increased accuracy. The polymer grip is ergonomic and textured to give the shooter a comfortable, non slip hold on the weapon. The magazine release and slide release are ambidextrous. The sights on the weapon are painted white making them easy to see in low light environments. A tactical rail is built into the front of the pistol and can be used for adding accessories such as flash lights or lasers. If you're looking for a great high quality sidearm look no further than the HK45!