31k square bar version (depreciated)

For most parts the construction is the same as the 31K blaster from Moose mod shop. You can follow the assembly instructions on youtube for the same.

For print guide, follow the one for the 31k except for the plunger heads and rod. See image below for those three (yes, the plunger rod needs supports):

Remove the supports with a screwdriver.

I used a 17x4mm TPE, M8 washer and a M4 washer as the plunger stop.

Please find below the  changed hardware list:

1. Turnaround: 

   1. Orings: 30x35mm oring-plunger tube oring, 8x12mm oring-pusher oring

   2. 2x M3 (20mm long) screws- to secure the turnaround to the slide

   3. 2x  7x6mm ball detents

2. Slide:

   1. Plunger tube- 35mm ID 38mm OD tube 8cm long

   2. M3x14mm,M3x10mm- to secure the sear to the slide

3. Frame:

   1. M3x14 for securing the muzzle to the frame and to lock the barrel in place

   2. 13mmx16mm alu barrel 12.5cm long

4. Rod cap:

   1. M3 cap nut, 

   2. M4 washer, and 

   3. TPE disc (17x4mm)

5. Trigger front:

   1. 5mm spring 1cm long

6. Sear lifter lug: 2.5cm pin (2mm diameter)

7.  Plunger guide: 17.5 cm M3 threaded rod, 15.3 cm 6x6mm alu bar (or use the 3d printed one)

8. Plunger head: 

   1. 30x35mm o-ring

   2. 2x  M3x8mm to secure plunger head A to plunger head B

   3. 2x  M3x3.5mm to secure plunger head B to plunger rod