Our 4.5mm / .177 AK-103 Co2 BB rifles are based on Chinese-made Cybergun AK-47 (AKM Type-56) rifle. It is a semi-automatic NBB Co2 rifle with a moving steel bolt-carrier and recoil spring. Metal BBs (Ball Bullets) are fed directly from a detachable magazine. Some of its parts are genuine AKM Type-56 parts - stamped steel receiver, which can accomodate a real AK47 magazine (NOT temperature treated), dust cover and recoil spring. It also has a solid steel barrel (no sleeve barrel inside), which is pinned to a steel lower trunnion. We remove "fake" alloy and steel parts and replace them with correct all new solid STEEL parts including black polymer hand guards with gas tube (£83), a rear sight base (£66), front sight with DTK muzzle brake (£75), lower hand guard retainer (£29), cleaning rod (£15) and a so-called "full-auto" trigger pin to plug holes in the receiver (£12) . Our price also includes a Sebian Zastava AK47 polymer magazine (£35) and its conversion (£36) + 5 hours of labour including the use of lathe (£265). Essentially, we build a "deactivated" AK-103s with all moving parts, which are BB air rifles at the same time. They are cheaper then old spec deacts (!) and suitable for firearms training. A power upgrade comes as standard and all rifles are perfectly zeroed on our indoor range. We can also install all sorts of tactical furniture to order - please contact us for options. The Russian style side-folder version comes with side-folding stock (£110) + the cost of installation (£39). Our AK-103 rifles can take both AKM and AK-74 bayonets. The original AK-103 rifle is basically a 7.62mm AK-47 in AK-74M body and considered to be the most successful version of all 7.62mm AKs ever built as it remains operational for the astonishing 1,440 rounds shot (AKM's maximum is 650)