The Ergo 4012BK Grip Spacer Black Rubber Fits AR-Platform is a simple, purpose-built accessory designed to fill the rear upper void on large frame AR-type rifles. Molded from durable black rubber, this spacer nests between the receiver and grip to create a more continuous surface, helping smooth out the transition where many shooters feel an uncomfortable gap.

By occupying that empty space behind the grip, the Ergo 4012BK Grip Spacer can enhance comfort during extended range sessions and provide a more consistent hand position from shot to shot. Its low-profile shape is made specifically for large frame AR platforms, installing easily without adding bulk or changing the overall handling of the rifle. This is a straightforward upgrade from Ergo, a manufacturer known for practical, shooter-focused enhancements for modern sporting rifles.

• Manufacturer: Ergo
• Model: Grip Spacer
• Color: Black
• Material: Rubber
• Firearm Fit: AR-Platform, Large Frame