YargJay9991

Ok, try going through this basic troubleshooting checklist.
1. Is everything installed properly? Did you drag the Gamedata folder from the mod's folder into the KSP_win (or other depending on OS) folder and merging everything? This puts everything in the right place for the game to recognise.
2. Do you have the latest version of both the mod and KSP? This is essential, not having the latest versions of mods and KSP can cause problems. (Don't get KSP 1.1 until it's been fully released)
3. If it's still not working, try reinstalling the mod. Remember to delete the mod's folder in the Gamedata folder before reinstalling.
 
Do you have any other mods installed? A common problem is that two mods interact in a way that breaks one another. This is a bit trickier to fix but the best way is to make sure you have the latest version of every mod.
The latest version BD Armoury is available HERE. Also I suggest checking out the BD Armoury dev thread:

. You may find something there.
All the best and Happy Flying
YargJay9991
 
EDIT: Just found this on the dev thread, I think it's what you're looking for:
Q: I'm missing ammo boxes or other parts, or aiming reticles, or the toolbar button. What's wrong?
A: This is because BDArmory can't find the textures or models, and that's because BDArmory is looking for them in a very specific location. If you installed BDArmory in the wrong place, it can't find those textures.
The BDArmory folder which is inside the GameData folder of the zip file needs to be copied into the GameData folder of KSP. Don't put the GameData folder into the GameData folder...