Airsoft flash mags are a recent innovation. To operate, pour a few hundred BB into the reservoir, then pull the cable on the base about 10 times and it will fire virtually all the BB without the need to pull the cable again. Constructed from metal.
For super smooth feed apply an occasional drop of silicone oil and only use ultra grade airsoft pellets. Please note high-cap mags will not fire the last 20 to 30 BB as this is the distance between the top of the magazine and the mechanism on the base. Should work with all M4 & M16 series AEGs that are listed as TM compatible, for example G&G CM16, SRC SR4, Bulldog M4.
Holds 360 BB
Works with the TM compatible M4, M16, L85, SCAR MK16, A&K M249
Not compatible with M83
Pull cable 10 times to load all BB
Use only ultra grade BB
Buy online at: http://www.genieairsoft.co.uk/lonex-m4-aeg-360-rd-spare-f lash-magazine-151-p.asp