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Springfield KUNA Extended Handguard
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Take your Springfield KUNA to the next level with the Spectre3D Extended Handguard. Designed and manufactured in the USA, this lightweight, high-strength handguard improves ergonomics, increases accessory mounting space, and provides enhanced control without requiring permanent modifications to your firearm.

Engineered from premium carbon fiber reinforced polymer, the handguard installs using the supplied hardware and attaches directly to the KUNA receiver. No cutting, drilling, or permanent alterations are required, and the factory barrel remains completely untouched.

Extending approximately 2.75 inches beyond the factory receiver, it provides a longer support-hand position while maintaining a lightweight, well-balanced platform.

Features

Extended Control

The additional forward length allows for a more natural support-hand position, improving stability, recoil control, and overall weapon handling.

Full-Length 1913 Picatinny Rail

A continuous MIL-STD-1913 top rail aligns seamlessly with the factory rail, providing uninterrupted space for optics, backup sights, lasers, or other accessories while retaining compatibility with the factory front sight.

M-LOK Compatible

Integrated M-LOK slots on both sides and the bottom provide flexible mounting options for lights, grips, lasers, sling mounts, and other accessories.

Depending on suppressor diameter, shorter M-LOK screws may be required.

Lightweight Construction

Constructed from premium carbon fiber reinforced polymer, the handguard adds minimal weight while maintaining excellent rigidity. Unlike aluminum handguards, the polymer construction significantly reduces heat transfer to the shooter's support hand, improving comfort during extended shooting sessions.

Suppressor Compatible

Designed to accommodate suppressors up to 1.65 inches in diameter, allowing for a clean, compact suppressed configuration.

Modern Appearance

Clean lines and an aggressive profile complement the Springfield KUNA while maintaining full functionality.


Specifications

  • Overall Length: 6.5 in.
  • Extension Beyond Receiver: 2.75 in.
  • Height: 3.1 in.
  • Width: 2.2 in.
  • Weight: Approximately 3.6 oz.
  • Material: Premium Carbon Fiber Reinforced Polymer
  • Manufactured in the USA by spectre3D

Installation

The spectre3D Extended Handguard installs directly onto the Springfield KUNA using the included mounting hardware.

  • No permanent firearm modifications required.
  • No barrel modifications required.
  • Installs with common hand tools.

Important Safety Information

This handguard is intended for use only with a compatible suppressor or approved muzzle extension that extends beyond the front of the handguard.

Do NOT fire the firearm with the handguard installed unless an appropriate suppressor or muzzle device is installed.

Failure to follow these instructions may result in damage to the handguard, attached accessories, or personal injury.

Always verify adequate clearance between the suppressor and the inside of the handguard before firing.


Heat Resistance

The spectre3D Extended Handguard is manufactured from an advanced carbon fiber reinforced polymer selected for its excellent strength-to-weight ratio and thermal performance.

Under normal recreational and defensive firing schedules, the material is designed to withstand the temperatures typically encountered when used with pistol-caliber suppressors.

As with any polymer component, extremely aggressive firing schedules—including repeated magazine dumps, prolonged rapid fire, or fully automatic fire with little cooling time—may generate temperatures beyond the intended operating range of the material.

Allow the suppressor and handguard to cool periodically during extended shooting sessions.


M-LOK Torque Specification

Maximum Recommended Torque: 11-13 in-lbs

Exceeding the recommended torque can permanently damage polymer M-LOK slots.

When installing accessories:

  • Do not exceed 11-13 inch-pounds of torque.
  • Use a torque wrench whenever possible.
  • Verify that all M-LOK T-nuts rotate fully into the locked position before tightening.
  • Inspect all hardware after installation.

Damage caused by improper installation or overtightening is not covered under warranty.


Disclaimer

The Spectre3D Extended Handguard is an aftermarket accessory intended for lawful use by responsible firearm owners. Installation should only be performed by individuals familiar with safe firearm handling procedures.

Always verify proper installation and function before use. The user assumes all responsibility for safe operation and use of this product.

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