---
title: "Polite Society Fortitude 5.56 HD Inconel Suppressor"
description: "5.56 suppressor made from Inconel 625 with a 5\" length, 11.5 oz. weight, HUB interface, and included 1/2x28 direct-thread mount."
canonical_url: "https://www.kygunco.com/product/polite-society-fortitude-5.56-hd-inconel-silencer"
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  "og:description": "5.56 suppressor made from Inconel 625 with a 5\" length, 11.5 oz. weight, HUB interface, and included 1/2x28 direct-thread mount."
  "og:image": "https://cdn.kygunco.com/assets/products/316427/thumbnail.jpg?v=1793804764"
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---

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PLT-556HD-001

![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/316427/main.jpg?v=1793804764)

For illustration purposes only, this image may not be an exact representation of the product.

# POLITE SOCIETY Fortitude 5.56 HD Inconel Silencer

The Polite Society Fortitude 5.56 HD is a hard-use suppressor for .223 Remington and 5.56 NATO rifles. It is made from Inconel 625, measures 5" long, weighs 11.5 oz., and uses a 1.375x24 HUB interface. It includes a 1/2x28 direct-thread mount with integrated flash-hiding brake and features a reduced-backpressure design to help direct gas forward.

$629.99

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Item #

316427

Style

PLT-556HD-001

UPC

850089397023

Condition

New

Manufacturer

[Polite Society Industries](https://www.kygunco.com/brand/polite-society)

Model

Fortitude

Caliber

5.56 NATO

Material

Inconel

Weight

11.5 oz

Action

Silencer

Fortitude is strength that doesn't announce itself. Engineered for rifles that see hard use and sustained firing schedules, the Fortitude 5.56 HD combines advanced suppression technology with the extreme durability of Inconel 625 construction. Its reduced-backpressure design helps keep gas moving forward, minimizing blowback while delivering effective sound and flash reduction when conditions are at their toughest.

FEATURES

- Inconel 625 construction is optimized for sustained fire and high-heat environments
- Tripass Core Technology utilizes three gas paths and multiple expansion chambers to disrupt and cool gases while minimizing backpressure
- Integral reduced-backpressure endcap helps direct gas forward to reduce blowback at the shooter
- Acoustic Golfball Dimpling increases internal volume and deepens tone without additional overall length
- Jet-Turbine Diffuser Endcap disperses hot gases to reduce flash and muzzle signature
- HUB-compatible interface supports a wide range of industry-standard mounting systems
- Included direct-thread mount features an integrated flash-hiding brake design
- Integrated wrench flats allow installation and removal with standard tools

SPECIFICATIONS

- Caliber Compatibility: .223 Remington / 5.56 NATO
- Mount Interface: 1.375x24 HUB
- Included Mount: 1/2x28 Direct Thread with Integrated Flash Hider
- Length: 5.00"
- Diameter: 1.69"
- Weight: 11.50 oz
- Material: Inconel 625
- Construction Method: Laser Powder Bed Fusion
- Finish: Cerakote
- Mount Material: 17-4 Stainless Steel

**

WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to [www.p65warnings.ca.gov](https://www.p65warnings.ca.gov).

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