Stock PartsB5 SystemsSold by Brownells

B5 Systems

Ar-15 Accessory Cheek Piece - Ar-15 Accessory Cheek Piece Fde

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Fits All

Variants of the B5 Collapsible

Mounts Adjusts

Using the undercuts found on

Adds 3/8

Inch of height for improved

Horizontal Adjustment

To help fine-tune cheek position

Made Mil-spec

Materials and finish

$19.95
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SKU: 430104492

Overview

This cheekpiece is designed to work with all variants of the B5 Collapsible Precision Stock, giving shooters a simple way to refine stock fit without changing the base setup. It mounts and adjusts through the stock’s undercuts, adding 3/8 inch of height along with horizontal adjustment to help support more consistent cheek placement. A soft overmold is included for added comfort, and the Mil-Spec materials and finish keep the design in line with the stock system. It is a practical add-on for hunters and precision-minded shooters who want a more tailored interface at the rifle.

Why Hunters Choose the B5 Systems

Fits All

Variants of the B5 Collapsible

Mounts Adjusts

Through the CPS undercuts for

Adds 3/8

Inch of height and horizontal

Made Mil-spec

Materials and finish

Soft Overmold

Adds comfort during use

Key Features

  • Fits all variants of the B5 Collapsible Precision Stock (CPS).
  • Mounts and adjusts using the undercuts found on the CPS.
  • Adds 3/8 inch of height for improved cheek placement.
  • Provides horizontal adjustment to help fine-tune cheek position.
  • Made of Mil-Spec materials and finish.
  • Soft overmold adds comfort during use.

Best Used For

  • AR-15 users running a B5 Collapsible Precision Stock and wanting a fitted cheekpiece add-on
  • Shooters seeking added cheek height and horizontal adjustment for more consistent cheek placement
  • Hunters building a precision-oriented AR setup with a compact, adjustable stock interface
  • Users who prefer a soft overmold contact point on a stock accessory for added comfort
  • Anyone needing a lightweight, compact cheekpiece that mounts to B5 CPS variants

Specifications

Added Height3/8 in.
Available ColorsAll standard colors
CompatibilityFits all variants of the B5 Collapsible Precision Stock (CPS)
Horizontal AdjustmentYes
Length4.50 in.
MaterialMil-Spec materials and finish
Mounting MethodMounts and adjusts via the undercuts found on the CPS
OvermoldSoft overmold
Weight2.00 oz.
Width2.43 in.

Pros

  • Fits all variants of the B5 Collapsible Precision Stock (CPS).
  • Mounts and adjusts through the CPS undercuts for a secure fit.
  • Adds 3/8 inch of height and horizontal adjustment for cheek placement.
  • Made of Mil-Spec materials and finish.
  • Soft overmold adds comfort during use.
  • Available in all standard colors for easier matching.

Considerations & Trade-offs

  • Designed specifically for the B5 Collapsible Precision Stock (CPS), so it is not a universal cheekpiece for other stock systems.
  • Adds 3/8" of height and horizontal adjustment, which can improve cheek placement but also changes the stock’s feel and setup.
  • The soft overmold is intended for comfort, but it is still an added component on the rifle rather than a built-in stock feature.
  • At 2.00 oz. and 4.50 in. long, it adds a small amount of size and weight to the stock assembly.

Suggested Comparisons

  • AR-15 stock accessories
  • Cheek risers and cheek pieces
  • Precision rifle stock upgrades
  • Adjustable rifle stock components

Suggested Accessories

  • Rifle stock accessory
  • Cheek riser
  • Precision rifle accessory
  • AR-15 stock upgrade

Frequently Asked Questions

What stocks does the Accessory Cheekpiece fit?

It fits all variants of the B5 Collapsible Precision Stock (CPS).

How does the cheekpiece attach to the stock?

It mounts and adjusts via the undercuts found on the CPS.

What does the ACP add to the stock setup?

It adds 3/8" of added height and horizontal adjustment to help with cheek placement.

What materials or finish are listed for this cheekpiece?

The product is described as made of Mil-Spec materials and finish, with a soft overmold for increased comfort.

What are the listed dimensions and weight?

The listed specs are 2.00 oz. weight, 4.50 in. length, and 2.43 in. width.