Msbrg Xbbl Rem 870 12/24 Int Base

The Mossberg Remington 870 12 Gauge 24-inch Integral Base shotgun is a cantilever-equipped slug barrel platform engineered for precision rifle-slug accuracy and mounting flexibility. This configuration combines Mossberg's reputation for reliability with the 870's proven track record in law enforcement and defensive applications, delivering a dedicated platform for shooters requiring sub-100-yard slug performance with modern optics integration.

The 24-inch slug barrel features a fully-rifled bore, essential for stabilizing sabot or solid slugs and maintaining shot-to-shot consistency across typical combat and hunting distances. The integral cantilever mount eliminates the need for aftermarket bases, streamlining the system and reducing weight to 3.75 pounds—a critical specification for sustained-use scenarios where muzzle control and target transitions demand minimal physical fatigue. The matte blued finish provides corrosion resistance suitable for variable environmental exposure without the maintenance demands of bare steel.

This barrel assembly is designed for operators and serious hunters who need to transition their 870 platform to dedicated slug work. Typical use cases include home defense setups requiring precision at intermediate range, law enforcement applications where controlled shot placement matters, and deer hunting in jurisdictions mandating rifled slugs. The cantilever rail accepts standard tactical optics—red dots, low-power variables, and magnified scopes—positioning the glass forward of the barrel's motion envelope for reliable zero retention.

Note: This barrel assembly is not compatible with Remington 870 12 Gauge 3.5-inch Magnum models. Verify your 870 receiver generation and chamber specification before purchase to ensure proper fit and function. The 870 platform remains one of the most versatile shotgun systems in civilian and professional service, and this slug-specific barrel expands its capability beyond traditional buckshot patterns.