Well I finished the second prototype yesterday and built the working install tool today. I changed my mind on going at it from a production standpoint to a common individual user tool that doesn’t require special tools to build cheaply or use easily. It can be easily used by individuals with hand back or neck problems. Its not tiny parts and big fingers torure. Without hurrying one can remove the stock Kel Tec spring retainer end and install the new MCARBO integrated spring charging handle pin that many seem to have trouble with … in 90 seconds or less of little effort. Wana take a break or answer the phone when you are doing it?, no problem you are not holding spring tension down with one hand manipulating the alignment pins and trying to twist on the new pin with the other, wishing you had help or another hand. Its a click click click self locking install device that you can set down and walk away from at any step. It sets up, compresses the spring tension exposes the last inch of the install side of the spring guide alignment hook as easy as pulling change from your pocket.
Cheap, materials cost less than 10 bucks. I built mine from stuff lying about my shop. If I was producing them I would likely make them out of extruded aluminum tubing but settled on Schedule 80 PVC for my uses and plan. I have no interest in marketing these installers, zero. I don’t care who makes one or a thousand (s). Feel free to take this idea and use it as is, modify it and improve upon it, its an idea gift to MCARBO members from me. I will still install the pins for Members that send their spring and pin to me, MCARBO seemed to be encouraging that on their video, but I really cant see much need as easy as this installer is to build.
One last thing, there always is one. Using this device compresses a spring creating stored energy, that stored energy if released, suddenly or inappropriately, can propel the spring assembly or the pin out. Used as is with a safety wire on the compression locking pin it cant. Treat it like what it is, the end of a barrel and keep it pointing away from you and away from others.
In the next few days I will clean up my sketches and compose a pdf of photos, the drawing sketch, and a materials list with tool required. PM me your email address and I will send it out to members as a group. Not depicted are two 1/16 X 2" pins.