A must have for the standard size pen.
One more option
This great little adaptor allows me to use Fisher space pen refills in my full size TT pen. Thanks.
Great idea by Tactile Turn. I love the length of the standard pen but prefer Fisher pressurized refills. With this adapter I can now use the refills I prefer in the standard length instead of the short length pen. Also, if you have this adapted you can use just about any refill out there. If only they made one for the slim bolt action pen I would be even happier than I already am. Hopefully they make one soon!