This new model from Umarex takes the well known styling from the Colt M4, and couples it with the power, accuracy, and ease of a spring powered rifle and combines them into a very usable airgun package.
By using a spring powered action, the rifle fires .177 pellets down a rifled barrel, and with a full power spring and piston design behind it, the accuracy is good up to 45 - 50 meters. The action has a two stage trigger which can be adjusted to suit the individual, and the magazine pictured is a dummy which can be removed.
As per the original model there is plenty of weaver rail mounting space for optics, lasers, and other accessories, and the rear butt stock extends to accomodate all frame sizes. The front sight is fixed, and the rear flips up so it is not damaged during transportation.