Mossberg 514 Kit 12 Gauge 14" Heavy Wall Barrel Assembly

Mossberg 514 Kit 12 Gauge 14" Heavy Wall Barrel Assembly

*All NFA Rules Apply

Upgrade or configure your shotgun with the Mossberg 514 Kit, a factory conversion package designed specifically for the legendary Mossberg 500 platform. Built with the durability and reliability Mossberg is known for, this kit includes essential components to configure your shotgun with a 14-inch heavy wall barrel and supporting hardware for dependable performance.

For more than five decades and over 10 million units produced, the Mossberg 500 platform has earned a reputation as one of the most versatile and reliable pump-action shotguns available. Trusted by civilians, law enforcement, and military forces worldwide, it remains the only pump-action shotgun platform declared Mil-Spec, making it a proven choice for serious shooters.

The included 14-inch heavy wall barrel features a cylinder bore for consistent shot patterns at close distances and a bead sight for fast, intuitive target acquisition. Finished in a rugged Parkerized coating, the barrel is built to withstand harsh conditions while resisting corrosion and wear.

This comprehensive kit also includes a 6-round magazine tube, action slide assembly, forearm, and other necessary components to support installation and function. Whether replacing worn components or configuring a Mossberg 500 for a specialized role, the Mossberg 514 Kit provides factory-quality parts designed to perform.

14" Heavy Wall Barrel
Durable thick-profile barrel designed for reliability and long-term durability under heavy use.

Cylinder Bore Configuration
Ideal for close-range applications with consistent, wide shot patterns.

Bead Sight
Simple and highly effective front bead sight allows fast target alignment and quick shooting.

Parkerized Finish
Corrosion-resistant finish protects the barrel and components from wear and harsh environments.

6-Round Magazine Tube
Extended capacity magazine tube designed for smooth feeding and reliable operation.

Complete Conversion Kit
Includes multiple essential components required for installation and configuration.

Mossberg Factory Components
Manufactured to Mossberg’s quality standards for dependable compatibility and performance.

Legendary Mossberg Platform Support
Designed for the proven Mossberg 500 pump-action shotgun system.

Specifications

• Manufacturer: Mossberg
• Model: 514 Kit
• Platform Compatibility: Mossberg 500
• Gauge: 12 Gauge
• Shell Length Compatibility: 3"
• Barrel Length: 14 inches
• Barrel Type: Heavy Wall
• Bore Type: Cylinder Bore
• Sight Type: Front Bead Sight
• Barrel Finish: Parkerized
• Magazine Tube Capacity: 6 Rounds
• Included Components:
• Barrel: 14" Heavy Wall Barrel with Bead Sight
• Magazine Tube: 6 Round Tube
• Action Slide Assembly: Included
• Forearm: Included
• Action Nut: Included
• Magazine Spring Retainer: Included
• Magazine Cap: Included

Resources:

Conversion to Short Barrel Shotgun:
https://resources.mossberg.com/hubfs/manuals/103225-Short-Barrel-Conversion-Kit-Manual.pdf