An affordable clone of the Tokyo Marui SGR-12 AES is made by CYMA called the CM.102 and Taiwan Gun are expecting this to be available in December 2021... "CM.102 is an electric replica of a fully automatic shotgun. The mechanism is a dedicated gearbox with 3 barrels, which allows you to fire 3 BBs at a time. Each barrel has a separately adjustable hop-up system, which improves the range and accuracy of the shotgun. Just like each of the replicas from the PLATINUM series, the workmanship and fitting of the elements are at the highest level. Upper receiver, MLOCK handguard, barrel, muzzle device, sights, sling attachment points, fire selector lever, charging handle and other manipulators are made of aluminum. Lower receiver, pistol grip, buttstock and 100rd magazine are made of polymer."