B5 Systems Stock Pad Adapter for GNK-90

Requires two M3 4.6x5.7mm brass inserts on the “inside” of the adapter (opposite to the locking slots)for two M3x14 screws that should help hold the pad in place if you need it.

Print with locking slots up, you may want supports for the shelves in the slots, and they shouldn't be too hard to remove as long as your supports are decently tuned.

I don't know what your printer's tolerances are, so you may need to adjust scale by 1-2%

To install:
1. Remove existing Butt piece if you already have it installed.
2. Using the same 2 screws, attach the adapter in its place.
3. Put the buttpad's lugs into the slots and slide it into the locked position.
4. From the inside of the assembly, put two M3x14 screws into the brass inserts and through the part. Ideally the screws should bottom out against their heads and put pressure on the buttpad, just below the two clip-lugs.