INDUSTRY COMPONENT

Stock

A firearm stock is the rear part of a rifle that provides structural support, recoil absorption, and user interface for aiming and firing.

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Component Specifications

Definition
The stock is a critical structural component of a tactical semi-automatic rifle that houses the receiver and barrel assembly, provides a stable platform for the shooter's shoulder and cheek, and often incorporates ergonomic features for improved handling. It serves as the primary interface between the shooter and the firearm, transmitting recoil forces to the body while maintaining sight alignment and control during rapid firing sequences.
Working Principle
The stock functions as a mechanical interface that transfers firing forces from the firearm to the shooter's body while maintaining stability and alignment. It provides leverage for aiming control, absorbs recoil energy through material deformation and design geometry, and positions the shooter's eye relative to the sights or optics. Modern tactical stocks often incorporate adjustable features to accommodate different body sizes, shooting positions, and equipment configurations.
Materials
High-impact polymer (glass-filled nylon, reinforced ABS), aluminum alloy (6061-T6, 7075-T6), carbon fiber composite, or wood (traditional applications). Polymer stocks dominate tactical applications due to weight, durability, and cost advantages.
Technical Parameters
  • Weight 500-1200g
  • Drop at Comb 30-50mm
  • Drop at Heel 50-70mm
  • Length of Pull 330-380mm (adjustable)
  • Storage Capacity Optional battery/accessory compartments
  • Adjustment Points 3-6 position telescoping, cheek riser height
  • Mounting Interface Mil-Spec or Commercial buffer tube
Standards
ISO 9001, MIL-STD-810G, SAAMI

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Stock.

tactical rifle stock adjustable stock firearm component AR-15 stock buffer tube recoil management shooting ergonomics Stock Stock in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Tactical Semi-Automatic Rifle

Civilian-legal semi-automatic rifle for sport shooting and personal defense.

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Engineering Analysis

Risks & Mitigation
  • Improper installation causing receiver damage
  • Material fatigue under sustained fire
  • Loose adjustments affecting accuracy
  • Compatibility issues with buffer systems
FMEA Triads
Trigger: Over-tightening mounting hardware
Failure: Cracked receiver extension threads
Mitigation: Use torque wrench (35-40 in-lbs maximum), apply thread locker
Trigger: Repeated adjustment cycles
Failure: Worn detent mechanisms causing loose fit
Mitigation: Regular inspection, replacement of wear components, use of quality detent springs
Trigger: Incompatible buffer tube diameter
Failure: Stock wobble or binding during operation
Mitigation: Verify specifications before installation, use matching commercial or mil-spec components

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.005 inches for critical interfaces, ±1mm for length adjustments
Test Method
Drop testing per MIL-STD-810G, cyclic adjustment testing (5000+ cycles), recoil simulation testing

Buyer Feedback

★★★★☆ 4.9 / 5.0 (31 reviews)

"Testing the Stock now; the technical reliability results are within 1% of the laboratory datasheet."

"Impressive build quality. Especially the technical reliability is very stable during long-term operation."

"As a professional in the Machinery and Equipment Manufacturing sector, I confirm this Stock meets all ISO standards."

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Frequently Asked Questions

What is the difference between Mil-Spec and Commercial buffer tubes?

Mil-Spec buffer tubes have a diameter of 1.148 inches with specific threading, while Commercial tubes measure 1.168 inches. Stocks are not interchangeable between these standards without matching components.

How does stock material affect rifle performance?

Polymer stocks offer light weight and corrosion resistance, aluminum provides maximum rigidity for precision shooting, while carbon fiber combines strength with minimal weight at higher cost.

What are the key adjustments on modern tactical stocks?

Length of pull (LOP) adjustment via telescoping mechanism, adjustable cheek risers for optic alignment, and sometimes cant or height adjustments for specialized shooting positions.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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