GEN 3 F5-ACR STOCK

GEN 3 F5-ACR STOCK

F5-ACR Gen 3 Stock – Adjustable Cheek Piece, Folding, Bufferless Performance

The F5-ACR Gen 3 is the next evolution of F5 Manufacturing’s legendary ACR-style stock, engineered to replace the original F5-ACR while retaining every proven feature shooters rely on—now upgraded with a fully adjustable cheek piece for enhanced ergonomics and precision shooting.

Designed for modern firearm platforms that do not require a buffer tube, the F5-ACR Gen 3 delivers unmatched versatility, durability, and compact performance. Whether you’re running a duty rifle, compact carbine, or advanced bufferless system, this stock provides rock-solid lockup, folding capability, and repeatable fit across a wide range of platforms.

LIGHWEIGHT DURABILITY | SUPERIOR ADJUSTABILITY | TACTICAL VERSITILITY

DETAILS

New Gen 3 Upgrade: Fully Adjustable Cheek Piece

The defining enhancement of the F5-ACR Gen 3 is its fully adjustable cheek riser, allowing shooters to fine-tune cheek weld for optics, magnifiers, night vision, or thermal devices. This upgrade dramatically improves shooting comfort, eye alignment, and consistency—especially on modern optic-driven platforms.

  • Tool-less or low-profile adjustment design

  • Optimized for magnified and red dot optics

  • Maintains compact folded profile

The rifle adapter, made from heat-treated 4140 STEEL is designed to help filter out the initial blast of solvent and save the following parts from the power of the chemicals. The kit includes jigs for modifying your solvent trap, after applying for the proper forms (namely an NFA Form 1). The modular design allows the customer to change the overall length of the device.

Folding, Bufferless Design with Fire-While-Folded Capability

Like the original F5-ACR, the Gen 3 is purpose-built for bufferless firearm platforms, eliminating the need for a rear-mounted buffer tube. This allows for a true side-folding configuration, reducing overall length for storage and transport while maintaining operational capability on compatible systems.

  • Side-folding design with positive lockup

  • Maintains rigidity when deployed

  • Ideal for compact, vehicle, and confined-space use

FEATURES

Precision Construction & Proven Materials

The F5-ACR Gen 3 is manufactured to tight tolerances using premium materials to ensure long-term durability under hard use.

aluminum hinge closeup

CNC-machined aluminum components for strength and rigidity

Screenshot 2025-02-15 at 8.37.45 PM

Reinforced polymer construction where weight savings matter

CZ Scorpion F5ACR

Slip-fit tolerances for minimal play and maximum stability

Closeup of grunge American flag

Designed and manufactured in the USA

COMPATABILITY

  • CZ Bren 2

  • CZ Scorpion

  • Grand Power Stribog

  • MP5 variants

  • FN SCAR

  • PSA JAKL

  • F5 Mfg FCR

  • F5 Mfg FCP

  • CMMG Dissent

Why Choose the F5-ACR Gen 3

  • Direct replacement for the original F5-ACR stock
  • All original features retained with a major ergonomic upgrade

  • Fully adjustable cheek piece for precision shooting

  • Buffer-tube-free, folding design

  • Fire-while-folded capability on compatible platforms

  • Built for modern optics and professional use

  • Proudly made in the USA

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