A low powered WELL WE01A SMG CQB is available at Softair Zone and here is what they say about this... "Here we show you the brand new Well WE01A. With this airsoft, which is sold under 0.5 joules and therefore from 14, show Well that you are rightly an old hand in the field of airsoft.

This SMG was specially designed for the CQB or backup area. This model is made entirely of polymer plastic, inside is a reinforced gearbox with electronic trigger unit. Visually, it impresses with an M-Lok handguard, an aggressive flash hider system and a flat trigger.

In addition to a 100-round mid-cap, the scope of delivery includes an adapter for T-plug on Mini Tamiya."