Bent upper blowback shield, widened pin
Changed pin to polyhedron: sight_length --> sight_length-1
Bent Dangly thing 10 degrees and shifted cylinder
Added angled notches to Dangly thing
Added notch in bottom of barrel for stock latching
Added 1.25 to muzzle_hex_bolt_offset to compensate for increased bore diameter
Added 0.5 to shift muzzle top/bot drill holes
tilted sight guard 10 degrees so it might print