Well M401 300 fps average....finally

I have been using my jet lag to my advantage this week. I have finished the M249 (minus paint) and I have been looking to get 300 fps average from the well m401. Last night I installed some metal gears and cylinder head, unequal 1.3 spring etc etc. I have to say it sounds completely different now and the sound alone is enough to scare you. Hot of the chrono this morning…nailed it.

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I’ve had mine there for some time now.

It pays, but isn’t mandatory for a 1.3, to reinforce the front of the gearbox

I ripped mine off at some point right before I became a fungible pellet collector

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