ProMag Mossberg 500 Shotgun Adjustable Buttstock 12 ga / 7rd Shell Carrier Black Polymer

The ProMag Mossberg 500 Shotgun Adjustable Buttstock with 7-round shell carrier in black polymer is purpose-built for law enforcement, military, and civilian tactical operators who demand reliable ammunition management and ergonomic control. This integrated buttstock and shell carrier system transforms the Mossberg 500 platform into a combat-ready shotgun by eliminating the need for separate ammunition storage solutions. Whether deployed for breaching operations, patrol, home defense, or competitive tactical shooting, this accessory bridges the gap between base shotgun and mission-ready firearm in seconds.

Constructed from durable black polymer, the ProMag adjustable buttstock accommodates shooters of varying physical profiles through length-of-pull adjustment, allowing proper cheek weld and recoil management across different body armor configurations and tactical gear setups. The integrated 7-round shell carrier is molded directly into the buttstock body, providing immediate access to shotgun rounds without requiring mag pouches or separate carriers. This design keeps ammunition secure during movement while enabling fast tactical reloads—critical in dynamic scenarios where split seconds determine engagement outcomes. The polymer construction resists corrosion, impact damage, and environmental degradation while keeping overall weight manageable at 3.64 pounds, preserving the Mossberg 500's renowned reliability and handling balance.

This buttstock assembly is optimized for 12-gauge Mossberg 500 shotguns and compatible with most standard receiver configurations. Installation is straightforward—no gunsmithing required—making it ideal for departments standardizing shotgun loadouts, operators building personal defense systems, or shooters seeking to maximize their shotgun's duty performance. The adjustable design accommodates operators in tactical gear, body armor, or unconventional shooting positions common in breaching, room clearing, and patrol environments where fixed stocks prove limiting. For those running the Mossberg 500 platform in professional or serious civilian contexts, the ProMag adjustable buttstock with integrated shell carrier represents a practical, cost-effective upgrade that consolidates buttstock and ammunition management into one proven component.