I'm about to build a pump mag. What do I need to know?

[rawbutter]

I have designed exactly ZERO pump markers.
I have owned exactly ZERO pump markers.
I have built exactly ZERO pump markers.
I have however fixed several ill-bent pump rods that rendered the markers unusable.
In fact, I would argue that YOU have much more knowledge on the subject than me.
Dont blame the solution...
lol

Oh, don't get me wrong. I'm not mad at you. I'm sure that bending the rod is a better solution than shims, which can fall out. But the tolerances are so tight that bending it into the exact right shape is very difficult. I might try again later, but for now I'm happy how it is.

[Nobody]

The one thing to remember is that, when the pump breaks (99% pump breakages are in the wave spring), you end up with a semi. Albeit a Lvl7 mag, but a semi none-the-less.

Thanks TK! Even when you fail, you still give us a better than most gun.

[luke]

But the tolerances are so tight that bending it into the exact right shape is very difficult.

Then you're doing it wrong, because it's actually very simple.

[Walking Stick]

OP, maybe this will help you in getting the angle and length correct.

[luke]

Just assemble the marker without the body and you can see exactly how much to bend the rod.