Quote:
Originally Posted by Styrak
I'd say a Systema M120. I run one in my AUG. Same barrel length as a M14 and I'm using a bearing spring guide as well, and I get 400 on the dot. Less with hopup on (385-ish).
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Sounds like the G&G M14 has the same bad air leaking issues as the TM M14 does. I tried a Prometheus 120SP in my TM MP5SD a few months ago and got a decent 435fps out of it.
And the Prometheus has a lower fps rating than Systema.