FX Impact Valve Adjuster set screw to lock its position?

[Superpete]

Hi, Impact M3 valve adjuster knob. When I walk around woods holding gun just so around that area, I managed to move that know couple of time by accident. I see that it has holes for set screws, is there a way to put a set screw there to lock it in it's position to prevent from accidental interference? Anyone done that? Or maybe there is a better way to lock it in place. thank you.

 

[6gun]

Hi, Impact M3 valve adjuster knob. When I walk around woods holding gun just so around that area, I managed to move that know couple of time by accident. I see that it has holes for set screws, is there a way to put a set screw there to lock it in it's position to prevent from accidental interference? Anyone done that? Or maybe there is a better way to lock it in place. thank you.

View attachment 562821

I travel with mine, put. It in a soft case and man handle it like crazy, carry it right under the bottle neck and have never had mine. Move. I just put a scope sticker on it for a while when I was worried and it never moved.

 

[Vetmx]

I always lock mine down on all my guns. But I forgot to install it back in my one gun and last squirrel season I spun it while shifting positions in the woods. Was at my camp with no notes or digital calipers so I had to wing it.

Remember, it’s just a tiny set screw that touches aluminum. It’s not a lug nut on a car. Just make it barely snug.

 

[Superpete]

So, you do install small set screw there to tighten it up, correct? I don't see one in there, so I guess I have to go find one at the hardware store I guess

I always lock mine down on all my guns. But I forgot to install it back in my one gun and last squirrel season I spun it while shifting positions in the woods. Was at my camp with no notes or digital calipers so I had to wing it.

Remember, it’s just a tiny set screw that touches aluminum. It’s not a lug nut on a car. Just make it barely snug.

 

[Revoman]

The only issue with that very small set screw that I have noted is that if the knob is adjusted too far out, the set screw misses the inner 'sleeve' (it's past where the inner sleeve ends) and will not work as intended.

mike

 

[Superpete]

Copy that. thank you

 

[Vetmx]

So, you do install small set screw there to tighten it up, correct? I don't see one in there, so I guess I have to go find one at the hardware store I guess

It’s like a M3x4mm. And like I said, don’t tighten it up. Just snug. The gun isn’t a Harley.