I have a question regarding Lumens Factory. Which one of the following can I use for the above setup to replace the Oveready DPC Tailcap with Silver Clip:
_ Z41 Style McClicky Tailcap for Surefire P/Z/G/C, HA3 Black
https://www.lumensfactory.com/en/product_detail.php?pid=566
_ McClicky Upgrade kit for Surefire Z41 tailcap
https://www.lumensfactory.com/en/product_detail.php?pid=356
Also, assuming one of these works, can I use it with a Malkoff MDX Titanium pocket clip?
All these tailcaps have different overall lengths.
A shorter tailcap like the SF/Lumens Factory Z41 with anodized threads and a McClicky needs to screw all the way down so it can make direct contact with the body.
These are short, and leave a gap right where you want to put the clip.
See pics on bodies here:
https://www.lumensfactory.com/en/product_detail.php?pid=566
That's why the Malkoff clip comes with a pair of o-rings to make up the gap on SFs.
These should work, but will require o-rings to fill the gap.
The DPC tailcap is intentionally made longer to minimize that same gap. As with the Z41/McClicky, an appropriately sized o-ring can also be used to make up for the gap being too large for the tailcap body to hold the clip in place.
On the other hand, if the gap left by the DPC tailcap is so small that the clip won't fit in between, it will not work, period.
Scroll down for comparison pic here:
https://www.oveready.com/flashlight/tailcap-dpc-ha-black-with-black-clip/
So this may or may not work for you, depending.
The Malkoff tailcaps, with bare threads, are intended to mate with a body that also has bare threads, and make ground contact regardless of whether they are tightened down all the way or not. That's why you can screw them down(on a Malkoff body) and capture a spacer, clip, or lanyard ring, and the light still works.
You lose all those options with anodized threads, and it's most likely the Malkoff tailcaps won't work at all without removing that anodizing.
They will definitely work, as far as capturing the clip and maintaining contact between the tail switch and body, IF you remove the anodizing from the E70's threads(but may introduce a battery length issue due to the tailcap not being screwed down far enough, effectively lengthening the body/battery compartment).
Another question is how well the Malkoff clip will work with the E70's smaller diameter body.