The ECHO 1 AK CPM is an extremely well designed and well built rifle that is undisputedly among the best looking AK replicas we have seen to date. It is also officially licensed by Vector Arms and has trademarks laser etched into its receiver giving it a top score in appearance. With only the pistol grip and foregrips being made of ABS, this rifle has the same metal content as the real firearm and is exceptionally solid. The receiver has a non reflective matte black finish with contrasting steel receiver pins. The stock has somewhat of a crud design, as it should since after all it is an AK, but is very rigid and does not wobble at all. The stock folds to the left and locks onto a spring loaded metal catch on the side of the receiver. With the stock folded to the left you still have access to the fire selector and can comfortably hold the rifle making better for close quarters than other AK under folders on the market. Its battery is installed into the top of the receiver by flipping open the receiver cover and sliding the battery down through the front of the gun. The receiver cover on this rifle is actually spring loaded and hinges at the front so it is a lot easier to install the battery in this model than what you are used to doing. Also unlike other AK models which are restricted to using an 8.4v battery unless you do some serious modifications to the battery compartment of the rifle, the CPM has enough room to hold up to 12v stick type battery pack.