FAB Defense RAPS Rapid Adjustable Precision Stock for AR-15

FAB Defense RAPS Rapid Adjustable Precision Stock for AR-15

The FAB Defense RAPS is an adjustable precision rifle stock designed for AR-15 and other compatible platforms using a carbine-style receiver extension. Unlike a conventional collapsible stock that primarily changes length of pull, the RAPS adds independent cheek-rest and buttstock adjustment to help the shooter establish a more consistent position behind the rifle.

The stock is built around FAB Defense's rapid-adjustment system, allowing length of pull and cheek-rest height to be changed without tools. An integrated memory feature lets the user return the stock to a previously selected length-of-pull position after collapsing it, making the RAPS particularly useful on rifles that need both compact storage and repeatable precision-oriented fit.

Key Features

• Designed for AR-15 and compatible carbine receiver extensions
• Rapid adjustable length of pull
• Adjustable cheek rest for sight and optic alignment
• Preset length-of-pull memory function
• Independent cheek-rest and buttstock adjustments
• Single-latch adjustment system
• Designed to maintain the selected settings when the stock is collapsed and reopened
• Rubberized buttpad for secure shoulder contact
• Integrated sling attachment provisions
• Durable reinforced-polymer construction
• Tool-free primary adjustments
• Available in multiple color options

Rapid Length-of-Pull Adjustment

The RAPS is designed to provide more precise stock fit than a basic multi-position AR stock. Length of pull can be adjusted to accommodate different shooters, shooting positions, clothing, or equipment while still allowing the stock to collapse along the receiver extension.

Its preset memory system allows the shooter to establish a preferred length-of-pull position and return to that setting after the stock has been collapsed. This provides the compactness of an adjustable AR-style stock without requiring the shooter to find the preferred position again each time it is deployed.

Adjustable Cheek Rest

An integrated cheek rest provides independent height adjustment to help establish consistent eye alignment with the rifle's optic. This is particularly useful on precision-oriented AR configurations where scope height, mount selection, or shooter anatomy may make a standard fixed comb less than ideal.

Because cheek height and length of pull are adjusted separately, the RAPS allows the rear of the rifle to be fitted to the shooter rather than relying on a single stock dimension.

Precision-Oriented Stock Geometry

The RAPS combines the adjustability of a precision rifle stock with the receiver-extension mounting system commonly found on AR-pattern rifles. Its broader rear profile, adjustable cheek support, and rubberized buttpad create a more substantial interface with the shooter than a minimalist collapsible stock.

The design is intended for applications where repeatable head position and stock fit are more important than minimizing the size or weight of the stock assembly.

Product Specifications

• Manufacturer: FAB Defense
• Model: RAPS
• Type: Rapid Adjustable Precision Stock
• Primary Platform: AR-15 and Compatible Platforms
• Configuration: Adjustable Precision Buttstock
• Cheek Rest: Adjustable
• Length of Pull: Adjustable
• LOP Memory: Yes
• Construction: Reinforced Polymer

Color Variants

• Black: MPN FX-RAPS | UPC 7290111586125
• OD Green: MPN FX-RAPSG | UPC 7290111586132
• Grey: MPN FX-RAPSGR | UPC 7290111586156

Fitment Note: The RAPS mounts to a compatible carbine-style receiver extension. Buyers should verify their firearm's receiver-extension specification and available clearance before installation.

The FAB Defense RAPS is intended for shooters who want the adjustability of a precision stock while retaining the collapsible architecture of an AR-style receiver extension. Its adjustable cheek rest, rapid length-of-pull system, and preset memory function provide a more repeatable rear interface for rifles configured around magnified optics and precision shooting.

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