Colt is well known for producing authentic replicas that function like, and are almost as durable as, their real steel counterparts. Their version of the 1911 .45 Gas Pistol is no exception and is an exact 1:1 scale to the real M1911 model. The 1911 is one of the most renowned pistols in the world, originally designed for combat during World War l & ll. Built with a full metal slide and frame, this pistol is ready for all airsoft conditions and also has a realistic feel and weight which adds to the overall authenticity of the replica. This 1911 pistol utilizes Co2 as the propellant, and the 12g cartridge is housed in the magazine. The metal top slide kicks back with every trigger pull, and leaves the user feeling satisfied with the sound and power that is given. The top slide will remain cocked back when the magazine is empty. Authentic Colt trademarks are stamped onto the slide, so you know you are walking away with a quality product. Specially designed textured ergonomic polymer pistol grips were used as opposed to the classic wood, to create a more lightweight and durable platform. The grip provides a better suited non-slip surface in all weather conditions. Under the front of the pistol is a 20mm accessory rail for the use of an additional tactical accessory such as a flashlight or laser sight. The dimensions, slide lock, grip safety and thumb safety are all fully functional which adds to the overall authenticity of this replica. Internally, the high quality parts are made to last and withstand the constant pressure from the Co2. The fully adjustable hop-up makes it quick and easy to account and adjust for wind conditions and target range, or if you are changing the weight of the BBs you're using. This pistol is fully compatible with Colt and Elite Force KWC 1911 mags and extended mags. The hop-up unit can be easily accessed thanks to the realistic field stripping capabilities of this 1911. The semi-automatic design allows you to fire as fast as you can pull the trigger, with no delay or having to manually cock back the hammer between each shot. This is a great pistol for those looking for a reliable versatile sidearm that packs a serious punch.