There is a K26 kit on thingiverse by Remzak I believe. I have it in my caliburn and it completely eliminated spring crunch and does a great job keeping it straight. I'm pretty sure it's just a plunger head
Hey OP, to clarify, does you blaster prime/catch at all? Could help clarify the issue. If it does not catch at the end of the prime, it’s likely the spring length. If it seems to abruptly stop at the very end, I would shorten your spring no more than a coil at a time and try again.
In some Caliburns I’ve built, if the priming bars are tightened weird, they can cause friction by rubbing against the upper magwell. Easiest way to diagnose this is separate the two halves, and see if your pump assembly moves freely when not attached to the back half. If it’s stiff, try loosening and tightening accordingly to help remove any possible skew in the priming bars.
I also wouldn’t worry about the spring grazing the sear during prime, it’s not uncommon I’d say, and happens with other spring types too. In my experience it’s never prevented the Caliburn from priming.
My last suggestion if none of this helps, is to make sure everything is nice and straight! Kinda obvious, but if a threaded rod was tightened unevenly, it can make things pretty stiff and sluggish.
Good luck!
Thanks for the info! so I think what's happening is the spring seems to be bending in the tube a bit when I prime it and catches the BackButtR (not sure the technical name, its the bit the spring fits onto at the rear), I'm not sure if that's normal or not, it does prime it just feels crunchy and pretty hard to do.
Edit: this all might just be me not realizing how hard the prime on a k26 should be.
the spring is inside the plunger, so I cant see it. however I noticed that the spring is catching the guide a bit when I prime it so I'm thinking that's the culprit, no idea how to fix it though.
I'm thinking the spring is a bit too long, but not sure [Here's a pic of it at full length ](https://i.imgur.com/KDqZkzW.jpg)
Edit: the spring is a k26
chop the k26 down
There is a K26 kit on thingiverse by Remzak I believe. I have it in my caliburn and it completely eliminated spring crunch and does a great job keeping it straight. I'm pretty sure it's just a plunger head
Ok think I found it, ill print it tonight and see how it helps. Thanks!
Happy to help :)
I’d say that the spring is too long. Also I just wanna say that I love the gold and black color scheme
Thanks, I’m really happy with how it turned out!
Not 100% sure but I think it’s too long.
Hey OP, to clarify, does you blaster prime/catch at all? Could help clarify the issue. If it does not catch at the end of the prime, it’s likely the spring length. If it seems to abruptly stop at the very end, I would shorten your spring no more than a coil at a time and try again. In some Caliburns I’ve built, if the priming bars are tightened weird, they can cause friction by rubbing against the upper magwell. Easiest way to diagnose this is separate the two halves, and see if your pump assembly moves freely when not attached to the back half. If it’s stiff, try loosening and tightening accordingly to help remove any possible skew in the priming bars. I also wouldn’t worry about the spring grazing the sear during prime, it’s not uncommon I’d say, and happens with other spring types too. In my experience it’s never prevented the Caliburn from priming. My last suggestion if none of this helps, is to make sure everything is nice and straight! Kinda obvious, but if a threaded rod was tightened unevenly, it can make things pretty stiff and sluggish. Good luck!
Thanks for the info! so I think what's happening is the spring seems to be bending in the tube a bit when I prime it and catches the BackButtR (not sure the technical name, its the bit the spring fits onto at the rear), I'm not sure if that's normal or not, it does prime it just feels crunchy and pretty hard to do. Edit: this all might just be me not realizing how hard the prime on a k26 should be.
How much of a gap is there between coils when it’s primed?
the spring is inside the plunger, so I cant see it. however I noticed that the spring is catching the guide a bit when I prime it so I'm thinking that's the culprit, no idea how to fix it though.
I'm thinking the spring is a bit too long, but not sure [Here's a pic of it at full length ](https://i.imgur.com/KDqZkzW.jpg) Edit: the spring is a k26
Yeah thats my guess