The Speed Monster, a custom 0.5J airsoft gun built by Sniper Airsoft Supply from a Specna Arms full metal base, features a modified DSG gearbox and HopUp for enhanced range and precision, achieving over 30 rounds per second; it incorporates a Gate Aster for programmable fire modes like binary, full auto, and burst, demonstrating consistent 0.45J power and a high rate of fire in firing and chrono tests, and is available in models like MK18 and SA-E1 on their website.

Sniper-AS checks out the SAC Speed Monster which spits out 28BBs per second. There are three of these available at their store... "Finally there is a SAC for ages 14 and up! With 28 BBs per second, the SAC SPEED MONSTER Airsoft is truly a speed monster! You can find out more in our review."