I fixed the front post issue for HK3 frames, and possibly Guarder frames.
I reasoned that if JB welding the front rails to the frame was the only way to ensure the front post would not snap, that a more reversible method would exist. I was reading about the Glock when I read about the second roll pin they added halfway through the third generation in order to reinforce the locking block.... idea.
I decided to drill out the hole in Part 18 where Part 33 enters, holding the leaf spring that pushes the slide lock up as well as providing detents for the safety plate. I drilled two corresponding holes in my frame (They were the thickest areas, don't worry), through which I inserted a solid pin. I slightly opened up the front post recess in Part 18 to avoid direct contact, directing the forces to our two pins, the added one and the trigger one.
The gun fires with and without the front post screw, and I think I've successfully redirected forces to the frame. I don't know if this will work for ABS frames- HK3's frames are nylon and more durable, same for Guarder. Even if the post breaks... the pins should hold the frame solidly.
... I think this is the most I've used my engineering degree for in some time.
