Modified Mini Bolt Action

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Dehn0045

Member
Joined
Mar 19, 2017
Messages
1,148
Location
Houston, Texas
A while back I was staring at a standard PSI 30 Cal bolt action and wondered why they didn't make the blank longer. The plated portion of the lower piece is unnecessarily long and the "action" is also unnecessarily long. Then my next purchase of kits they were all out of the gun metal 30 cal bolts, so I went searching for alternatives. I saw the mini and figured I could cut my own tube and make essentially a "long blank" version of the standard bolt action. Unfortunately the bullet tip has a slightly smaller hole for the tip of the pen (standard parker refills are about 2.5 mm whereas the D1 refill that comes with the mini has a tip diameter of about 2.1mm). So I drilled out the tip a little to fit a parker, which was relatively easy, but then noticed that the parker was too large to slide through the threaded bushing into the pen body. I could have assembled the pen with the refill inside, but then once the ink ran out you would have to disassemble the pen to replace the refill. I decided to just trim a standard plastic refill to fit. Also had to find an appropriately sized spring as the stock spring for the mini is way too long. The last thing I did was I swapped out the clip with a standard bolt action clip, the mini is a bit shorter and would've looked kinda funny.

In the end the overall length of this one is slightly shorter than a standard bolt, but the blank is about 0.5" longer. If you made it the same length as a standard bolt the blank would be 2.625" vs 1.969". And you can always make it longer as long as the plastic refill is long enough. I might look around for a better refill that is small enough to fit through the threaded bushing, but trimming the plastic refill eliminates the need for precision when cutting the replacement tube, and you don't have to mess with the tip.

The woods are desert ironwood and curly spalted maple, aluminum accent.

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magpens

Member
Joined
Feb 2, 2011
Messages
12,254
Location
Coquitlam, BC, Canada
@Dehn0045

Thanks for showing this mod. . Good to know about this possibility.

Your pen looks lovely !!!

But ..... with regard to "trimming the plastic refill" .... does that mean "shorten" ?
 

sorcerertd

Member
Joined
Sep 30, 2019
Messages
96
Location
North Carolina, USA
I really like the longer wood barrel there. I don't think trimming your own refill is very marketable, but I'd definitely make good personal use out of one like that.
 
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