Received with missing parts - F5 MFG Modular Stock System with CZ Bren Adapter

Shipping was quick once it came in stock, but when I opened the package it was missing the "CZ Bren 2 Compatible Adapter" and "Integrated Locking Hinge" only received the stock which is useless by itself. The quality seems to be slightly less than the Magpul ACR stock. Looking at the other review it seems like I was not the only one that received only the stock. Contacted OpticsPlanet for a return and they responded quickly. Seems like it was the manufacture that failed to include the missing parts with the stock.