What’s the screw on the back of my PMR LE for?

[lhamilton1807]

My PMR just arrived yesterday and I’m excited to get it aired up. On the right side of the gun just above the grip frame is a hex set screw. What’s it for? To my knowledge there isn’t a LPR back there, and the manual is completely silent about what this is. I couldn’t find a manual for the Limited Edition, but my understanding is that the LE just had cosmetic upgrades anyway.

Since it’s used, the plan is to turn the velocity down almost all the way and then slowly turn it up so I don’t blow out the noid. Board works so far, and the eyes do as well.

[BrickHaus]

its likely plug screw for an air passage. I dont have a pmr, but location wise, it makes sense.

[lhamilton1807]

That does make sense - the manifold points to the right side of the main tube, so this might just be a plug for sealing off a hole that was drilled for the air passage.

[Trbo323]

Yeah hpr air travels down the body through that.

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