FAB Defense AGR870-FK Remington 870 M4 Collapsible Stock

FAB Defense AGR870-FK Remington 870 M4 Collapsible Stock

The FAB Defense AGR870-FK is an M4-style collapsible stock system designed for Remington 870 12-gauge shotguns. It replaces the traditional fixed-stock arrangement with an ergonomic pistol grip and adjustable six-position stock, allowing the shooter to change length of pull while retaining a dedicated Remington 870 mounting interface.

This version does not use the folding mechanism found on FAB Defense's AGRF-series stock. The AGR870-FK is a straight collapsible configuration, making it the simpler option for buyers who want M4-style stock adjustment without a folding rear assembly.

Key Features

• Designed for Remington 870 12-gauge shotguns
• M4-style collapsible stock configuration
• Six-position reinforced polymer stock tube
• Includes FAB Defense GL-Core buttstock
• Integrated pistol grip
• Reinforced composite construction
• Non-slip grip texturing
• Four integrated rear QD sling swivel attachment points
• Adjustable length of pull
• No gunsmithing required according to FAB Defense
• Black finish

Adjustable M4-Style Stock System

The six-position stock system allows the shooter to adjust the rear length of the shotgun rather than working with a single fixed length of pull. This can be useful when fitting the shotgun to different users or accommodating changes in clothing and equipment.

FAB Defense pairs the adjustable rear section with its AGR-870 pistol grip. The grip uses reinforced composite construction and a textured surface, with a slightly angled geometry intended to provide a secure and natural hand position on the Remington 870 platform.

Compatibility

• Manufacturer: FAB Defense
• Model: AGR870-FK
• Platform: Remington 870
• Gauge: 12 Gauge
• Stock Type: M4-Style Collapsible Stock
• Color: Black
• MPN: FXAGR870G
• UPC: 7290105940780

Fitment Note: FAB Defense specifies the AGR870-FK for Remington 870 12-gauge shotguns. Buyers should confirm their exact shotgun configuration before installation, especially if other aftermarket receiver or stock components are already installed.

AGR870-FK vs. AGRF870-FK

The distinction between these two FAB Defense systems is important. The AGR870-FK uses an adjustable M4-style stock but does not fold. The AGRF870-FK adds a folding mechanism in addition to the collapsible stock. For buyers who only need adjustable length of pull, the AGR870-FK provides that capability without the additional folding hardware.

The result is a dedicated Remington 870 stock system that combines an ergonomic pistol grip, six-position M4-style adjustment, GL-Core buttstock, and integrated sling attachment points in one assembly.

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