MP5 EBR TAILHOOK BRACE AND ENDCAP

Tail hook brace attachment and endcap that work in conjunction with @Maverick0197:1 's EBR stock's design. Took inspiration from the daikon brace. Used unseenkillers pic blank and Scorp and Brydun's AR-15 Tailhook Arm Brace from fosscad repo as reference.