AEG UN 6.03 Technical Information download pdf (Page 112)

Practical A.E.G Upgrade 2006

Is ROF over 30/sec possible?

What is the major ROF bottleneck?

The true bottle neck on ROF is not the mechbox, but the BBs feeding mechanism.

Fast firing needs a fast and reliable bullet feeding mechanism. How fast can your

magazine feed? Our experience shows that low-cap mags feed very fast but can

be easily emptied in less than two seconds. Hi-cap mags feed slower and tend to

be less reliable.

One recommended way to improve the feeding mechanism is to replace the

stock plastic hopup unit with a one-piece metal hopup. Field reports show that

the one-piece type of hopup tends to allow significant ROF improvement and

almost-complete elimination of mis-firing (refer to the High Accuracy section for

other benefits of the one-piece hopup unit).

A one-piece metal hopup unit for M4:

Frequent cleaning and lubing (with Silicon Spray, NOT WD-40) of the magazines

are essential too. This is especially true for MP5, which is best known for its poor

bullet feeding performance (the shape of the magazine being too long and too

narrow is one major constraint).

Some shops claim that their custom guns can achieve a ROF of up to 30/sec. Be

prepared to pay a price for a high ROF like this (the upfront cost plus ongoing

maintenance and trouble shooting …etc). Refer to the next section on teeth

removal for further information.

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AEG UN 6.03 Technical Information Page 112