FYI for all those who haven't found it. The regulator screw is under the front trigger guard. It's a 3mm Allen. You can see it under the pic , it's brass colored.
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I made a Max 1 Facebook owners groupAdvertised power was 120j/88fpe with .22 slugs
I'm getting 90j/66fpe with .25 46gr slugs or .25 33.8gr pellets with factory setup
Anyone getting close to advertised power on their Max 1?