Simulated Machine Gun fire, gas powered

[rogue_artist]

Is gas powered Machine gun simulated fire still popular?  How do you set that up?  Is it propane?  What kind of experiences have you had with such a set up?

[Sturmkatze]

Often they sound like a farting duck if not set up properly.

[rogue_artist]

Ive seen some very good set ups Marsh.  Not everyone can afford a class3 license and $30,000 for an original MG-38 you know

[kestrel]

These guys have an interesting setup. Claim the backpack weighs less than 20lbs.
http://www.angelfire.com/wa/fallschirmjaegers/DetailMG42.html

I'm actually hoping to put a couple together in the future. They are very useful for fixed positions and vehicles. I've seen an attempt to carry around one in the woods, but the backpack of gas tanks weighed so much that a young marine couldn't stay standing! I'm hoping to get one lighter than that using the example above.

[rogue_artist]

very helpful, thank you!