Rear Pistol Grip with Sling Adapter Compatible with Mossberg 500 / 590 – Polymer Stock Adapter with Storage Compartment

Upgrade your setup with this rear pistol grip with sling adapter, engineered for compatibility with Mossberg 500 and 590 platforms (12 & 20 gauge). Designed for strength, comfort, and versatility, this polymer stock adapter allows users to attach collapsible rifle-style stocks while maintaining a lowered stock elevation for proper sight alignment.

Constructed from high-strength glass-filled nylon, this one-piece grip delivers exceptional durability without added weight. The ergonomic design improves handling and control, while the integrated storage compartment offers convenient space for small essentials.

A polymer rear cap with sling adapter adds functionality for sling attachment, making this an ideal upgrade for tactical, range, or outdoor applications. With all mounting hardware included, installation is quick and straightforward—no gunsmithing required.

Key Features

• Compatible with Mossberg 500 & 590 (12 / 20 gauge)

• Allows use of collapsible rifle-style stocks

• Lowered stock elevation for iron or bead sight use

• Injection-molded glass-filled nylon construction

• Ergonomic one-piece pistol grip design

• Integrated storage compartment

• Rear sling adapter cap included

• Lightweight, durable black polymer finish

• Easy installation with included hardware