The G&G TGM A4 MP5 has a fixed stock fitted to hold a battery. The battery itself can be plugged in after demounting the rubber buttpad. To gain access to the hop-up chamber we need to pull back the charging handle and lock it in the back position. The fire selector has graphic markings of fire modes and is located on both sides of the receiver, which allows left-handed people to use it without problems. After unscrewing a pad on the flash hider, a 14mm thread can be found allowing the installation of a silencer.

The manufacturer has managed to combine high quality with a low price by using plastic material to make the receiver. The elements made from metal are the iron sights, trigger, outer barrel, sling mount, and bolt cover, while the receiver was made of durable plastic reinforced with fiberglass and painted in matte black. Just as in real steel, the stock, front grip, and pistol grip are made of polymer. The replica features a very high quality of workmanship, so apart from the slightly smaller weight, at the first glance, it is not different from the standard, metal version.