The Hound: Threaded Rod Bullpup (Nerf Homemade)

Threaded rod bullpup: the Hound

There hasn’t been a bullpup blaster made with threaded rods because threaded rods couldn’t allow for the same kind of clearance as other materials, like U-channels or flatbars. The B-TCU, for example, uses a trigger linkage that goes around the magazine to interface with the seer; something not possible with threaded rods. 

If you want to be practical, that is.

There are Raider-style magwells that put the magazine at a 90° angle. This takes it out of the midline of the blaster; thus removing the need for the trigger linkage. With this, it’s now theoretically possible to make a bullpup blaster that uses threaded rods. 

1. First things first: I want a prototype so I know what I'm working with. Since it's going to be based off the B-TCU, I'll start there. So:
   • R/B-TCU

• R/B-TCU is functional. It’s short stroke, a byproduct of the inherent incompatibility of the parts. I’ve made them fit together and work, however performance is still to be desired. It can be narrowed into the 170s with fresh darts, but it’s practically unreliable.

• The Hound V1 has been completed. Another blaster unfortunately had to give its life for it to function properly, as it worked best with a TCv3 plunger head. I went with a long trigger, similar to the Longshot, to travel the necessary distance to interact with the seer to release the catch. The V1 model has some V1.1 parts, which has created some jank that can easily be fixed with a reprint I’ve yet to be bothered with (5/20)
  • The first Hound fixes the main problem I have with the early hobby raider; the weakness. Maybe the more proper term is “fragility” cause of the bare bars. Anyway, the spacers along the C3 rods create a nice track for the pump. 
  • The mag has been placed on the right side of the blaster this time. As one (who is right handed) could imagine, the profile has become “double wide”. As in, if Im looking around a corner, the mag would be seen before the blaster, and I’d still be covered. This placement has its pros and cons, but the cons are more visually apparent without the original prototype. 
• It achieves 180-200 with a 30cm kury “spoopy” barrel and the BCAR. I can’t remember any major hiccups from usage, unlike the prototype. The only real difficulty was the mag placement, but I was able to manage. (From field test at CANE in May '24.)

• Hound MK2 (V0.2.3)
  • Cosmetic upgrades to spacers for increased rigidity and look
  • Trigger guard for funnsies 

At it's core, a funky bullpup TalonClaw. This blaster was “finished” and left alone for other projects. The text is excerpts from personal notes during it's creation in 2024. The blaster is in a “beta” version, and there hasn't another blaster made yet.  It's unconventional, but it was a fun project. I don't have an exact bill of materials, as I used the hardware I had available, but I believe anyone who has built a Captain Slug TalonClaw, Caliburn, or a Charamile Designs Skewer will be able to figure it out. It has remixed parts from those aforementioned blasters.

It's compatible with Slug's raider magwell, however the “reciever” is modified for the MK2 version. Uses hardware found in the Slug family of blasters, including:

• TC3 plunger tube
• TC3 threaded rods (back half)
• C3 priming bars
• C3 threaded rods (front half)
• 3/8th, 10-32 nuts
• 10-32 bolts of various lengths
• 4-40 screws and metal standoff
• Small pin(s) (Brown, 0.075' dia)
• -123 O-rings