-In search for the compartment/door/flap off a (PS3) HORI HRAP (V3 SA, VX SA, or KAI edition)
-I believe the one off the XBox 360 version(HORI HRAP VX SA. WHITE COLOR) will be compatible as well too. It looks to be the same size.
-I would really prefer having the PS3 version(BLACK COLOR) instead. But will settle with the XBox360 version(WHITE COLOR) as well.
-Here’s some pics to better describe it: