FAB Defense GL-CORE CP Adjustable Cheek Rest AR-15 Stock

FAB Defense GL-CORE CP Adjustable Cheek Rest AR-15 Stock

The FAB Defense GL-CORE CP is an adjustable AR-style stock built around the GL-CORE platform with the addition of an integrated adjustable cheek rest. The cheek piece is the defining feature of the CP version, giving the shooter a higher and more repeatable support surface for use with optics mounted above the bore line.

The stock retains the collapsible architecture of the standard GL-CORE while adding cheek-height adjustment for rifles that benefit from a more elevated comb. It is designed for compatible carbine-style receiver extensions and can be configured for both MIL-SPEC and commercial-pattern tubes using the appropriate adapter.

Key Features

• Integrated adjustable cheek rest
• Three-position cheek-rest adjustment
• Collapsible AR-style stock configuration
• Designed for compatible carbine receiver extensions
• Supports MIL-SPEC and commercial-pattern buffer tubes
• Rubberized buttpad for secure shoulder contact
• Ergonomic cheek-weld surfaces
• Inverted adjustment lever helps reduce accidental activation
• Integrated sling attachment points
• Reinforced polymer construction
• Available in Black, OD Green, and Flat Dark Earth

Adjustable Cheek Rest

The GL-CORE CP adds a three-position cheek rest above the stock body. This allows the shooter to raise the comb to better match the height of the optic or sighting system, helping establish a more consistent head position behind the rifle.

This is the primary difference between the GL-CORE CP and the standard GL-CORE. The standard model uses a fixed cheek surface, while the CP version gives the shooter additional control over cheek height without moving to a dedicated fixed precision stock.

Collapsible Stock Configuration

The GL-CORE CP retains the adjustable length-of-pull function of a conventional collapsible AR stock. The stock moves along the receiver extension to accommodate different shooting positions, shooter proportions, clothing, and equipment.

The combination of adjustable stock length and adjustable cheek height allows the rear of the rifle to be fitted more precisely than a basic collapsible stock with a fixed comb.

MIL-SPEC and Commercial Tube Compatibility

The stock is designed for compatible carbine receiver extensions and uses FAB Defense's adapter system to accommodate both MIL-SPEC and commercial-pattern tubes. Buyers should identify the receiver extension installed on their firearm and use the appropriate adapter for proper fit.

Charging Handle Clearance

Important Fitment Note: On AR-15 and M4-pattern rifles, the raised cheek rest may interfere with charging-handle travel when the stock is fully collapsed or when the cheek piece is positioned too far forward. Buyers should confirm charging-handle clearance with their exact stock position and cheek-rest setting before use.

This consideration is particularly important on AR-pattern rifles because the charging handle travels directly above the receiver extension. The adjustable cheek piece should be positioned so it does not obstruct normal operation of the firearm.

Product Specifications

• Manufacturer: FAB Defense
• Model: GL-CORE CP
• Type: Collapsible Stock with Adjustable Cheek Rest
• Primary Platform: AR-15 / M4 and Compatible Platforms
• Receiver Extension Compatibility: MIL-SPEC and Commercial Carbine Tubes
• Cheek Rest: Three-Position Adjustable
• Length of Pull: Adjustable
• Buttpad: Rubberized
• Construction: Reinforced Polymer

Color Variants

• Black: FX-GLCORECPB | UPC 7290111581830
• OD Green: FX-GLCORECPG | UPC 7290111581847
• Flat Dark Earth: FX-GLCORECPT | UPC 7290111581854

Fitment Note: The GL-CORE CP can also be used on other platforms equipped with a compatible AR-style carbine receiver extension or adapter. Fitment, cheek-rest usefulness, and control clearance should be verified for the specific firearm before installation.

The FAB Defense GL-CORE CP is intended for shooters who want the compact adjustability of an AR-style collapsible stock with more control over cheek height. Its three-position cheek rest, adjustable length of pull, dual receiver-extension compatibility, and rubberized buttpad provide a more configurable rear interface than the standard GL-CORE while retaining a familiar carbine-stock format.

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