I've sat on this long enough. Unfortunately I DO NOT have production capacity available to produce these despite many people expressing interest in purchasing one. So I have a few people I'm discussing deferring those orders to.
Barrel material used is 1" OD x .884" ID Aluminum tubing cut to 12-inches in length.
Every component for the back half of the blaster is identical to the regular dart-firing Caliburn. The hardware set is also identical with the exception of an extra extension spring being needed for the "RTooth".
I'm including both Ramrod designs used. Ram2R is a pain to assemble but performs better than Ram2Rb. I'm slowly working on a third revision ramrod, but it will have to made with an aluminum tube core.
I've had some magazine reliability issues with the Magwell/Spreader prints a separate parts. The monolithic Magwell should help with those issues but it's a very long timescale print. The design isn't without issues at present. I've cleared up the larger problems but I simply haven't been able to print enough of these part sets to make any further design revisions.
RDartJam needs to be printed with 2mm perimeters, as do both Ramrod designs and the Spreader if you aren't printing the monolithic magwell. All other parts are 1mm perimeters with 20% infill.