The M4 offset stock base comes with two buffer tube positions the can be installed according to the required height for proper check welding even with face guards or masks on and also allows for better aiming with your optics  so your every shot lands right on the target.

Features:

• Lightweight aluminum alloy construction
• Lowers buffer tube height
• Allows usage of most optics on M4 Rifles while wearing a face mask or face guard
• Choose from one of 2 buffer tube positions for your preferred height
• Wiring can still be funneled through the base
• Buffer tube not included
• Compatibility: Most common Airsoft M4 Series AEGs. Requires receiver attachment point to be no more than 25mm long for proper fitment
• Not Compatible with Krytac AEGs.
• Not Compatible with Tokyo Marui Next Generation AEGs.
• Material: Aluminum Alloy