TRINITY Adjustable Tactical Stock with Pistol Grip for Mossberg 590 20 Gauge – Aluminum Tube Black

The TRINITY Adjustable Tactical Stock delivers strength, comfort, and versatility for Mossberg pump-action platforms. Built with a glass-filled polymer stock and adapter paired to a black anodized aluminum tube, this system is engineered for durability while maintaining a balanced feel.

The lowered stock elevation allows continued use of factory iron or bead sights, while the adjustable length-of-pull and unique latch system make it easy to tailor the fit to your preference. An ergonomic pistol grip with integrated storage enhances control and adds practical utility, and the rubber butt pad ensures secure, comfortable shouldering.

Designed for easy installation and long-term reliability, this stock system is a solid upgrade from Trinity Supply for compatible Mossberg pump models.

Compatibility

• Fits: Mossberg 500, 590, 535, 835, 590A1, Maverick 88

• Gauge: 20 Gauge

• Does NOT fit: Mossberg 930, FLEX system models, or semi-auto platforms

• Key Features

  • COMPATIBLE WITH MOSSBERG PUMP MODELS: Fits Mossberg 500, 590, 535, 835, 590A1, and Maverick 88 platforms (20 Gauge)

  • ADJUSTABLE STOCK SYSTEM: Unique latch design allows quick length-of-pull adjustment for a customized fit

  • LOWERED STOCK ELEVATION: Designed to maintain the use of factory iron or bead sights

  • DURABLE HYBRID CONSTRUCTION: Glass-filled polymer stock and adapter paired with a black anodized aluminum buffer tube

  • ERGONOMIC PISTOL GRIP: Integrated storage compartment adds utility while enhancing control and comfort

  • INTEGRATED RUBBER BUTT PAD: Non-slip rubber pad provides secure shouldering, added comfort, and recoil mitigation

  • EASY INSTALLATION: Includes all required mounting hardware for straightforward installation

  • MADE WITH QUALITY MATERIALS: Grip and aluminum tube made in the USA; adjustable stock assembly manufactured in Turkey