The RAP4 MilsimX M4 Military Assault Rifle is proudly made in U.S.A. It is specifically designed for combat training with the utmost reliability and durability. RAP4 MilsimX M4 Military is perfect for room clearing and building entry training as well as teaching CQB marksmanship and firearm safety. The RAP4 MilsimX M4 Military is all-metal construction with the weight width length and ergonomics comparable to authentic M16/M4 style assault rifles and the pistol grip is identical to that on an M4. This gives operators a true-to-life feel as if they are training with their duty gear. The RAP4 MilsimX replicates the Military M4 assault rifle. It works with an 18 round detachable magazine. An optional 200 round hopper adaptor is available to drastically increase ammo capacity. The RAP4 Milsimx M4 is built with an internal flexi-air system with an air tank within the stock or you may employ a full size air tank as a stock. The RAP4 MilsimX M4 is virtually maintenance free—it can go through thousands and thousands of shots before any maintenance is needed. When maintenance or repair is needed the RAP4 MilsimX M4 is so easy to work on that it can be completely torn down and rebuilt in less than 5 minutes. The RAP4 Milsimx M4 Military has a removable carry handle with M4-standard iron sights that are adjustable for elevation and windage. With the carry handle removed the RAP4 Milsimx M4 Military can take any standard scope sight or mount on its flattop rail.