If you're uneasy about drilling into your factory gun stock, this 52mm bottle clamp will easily attach to your 52mm carbon fiber or aluminum bottles. It has rubber pads on the inside to prevent any marring to your bottle. 

This clamp has picatinny rails at the bottom for you to connect your preferred picatinny accessories.

Great fit for the AEA HP Plus guns

Features:

• 6061 T6 aluminum
• Matte black anodize