Griffin Armament HUB HRT-5K AM 5.56 Suppressor, 4.5”, 1.375x24 HUB Mount

Overview

The Griffin Armament HUB HRT-5K™ AM is a compact, highly durable 5.56mm suppressor designed for users who want extremely low backpressure in a minimal form factor. Measuring approximately 4.5” long and weighing 11.5 oz., this hard-use suppressor was developed from Griffin’s HRT-556™ AM platform and uses an ultra-low-backpressure baffle system designed to reduce gas blowback for both right- and left-handed shooters.

Built using Griffin’s proprietary Nickel 625X™ alloy and state-of-the-art SLM additive manufacturing technology, the HUB HRT-5K AM combines lightweight construction with high-temperature durability. The printed core is laser-welded to a machined rear section for warranty serviceability.

The suppressor uses the industry-standard HUB mounting interface with 1.375x24 threads, allowing users to select a compatible mounting system based on their preferred setup. The suppressor does not include a muzzle device or HUB mount interface.

Key Features

• Compact 4.5” overall length
• 5.56mm (.22 caliber) rifle suppressor
• HUB-compatible 1.375x24 threaded rear
• Ultra-low-backpressure baffle system
• Durable Nickel 625X™ alloy construction
• State-of-the-art additive manufacturing
• Printed core laser-welded to machined rear section
• Low-backpressure flash hider end cap
• Designed for minimal and repeatable point-of-impact shift
• Hard-use rifle and tactical design
• Full-auto rated
• Lightweight 11.5 oz. construction
• Perpetual Lifetime Warranty™

Specifications

• Brand: Griffin Armament
• Model: HUB HRT-5K™ AM
• Product Type: Rifle Suppressor
• Caliber: .22 Caliber (5.56mm)
• Mounting System: HUB (1.375x24)
• Overall Length: 4.51”
• Diameter: 1.5”
• Weight: 11.5 oz.
• Materials: 17-4 H900 Stainless Steel, Nickel 625X™
• Suppressor Type: Hard Use, Low Backpressure, Rifle, Tactical
• User Serviceable: No
• Full Auto Rated: Yes
• Distance to Blast Baffle from Rear of Blind HUB Interface: 1.50”
• Sound Rating: -34.7 dB (137.3 dB on 12.5” MK2)
• Barrel Length Restriction: None for rifle calibers

Color Variations

Black

• Suppressor Color: Black

Flat Dark Earth (FDE)

• Suppressor Color: Flat Dark Earth

All specifications and included components are the same between the Black and FDE versions; only the exterior color varies.

What’s Included

• HUB HRT-5K™ AM Silencer (.22 Caliber / 5.56mm)
• Griffin-branded Silencer Pouch

Important: HUB HRT-5K™ AM suppressors do not ship with a muzzle device or HUB Mount Interface. Compatible mounting components must be purchased separately.

Applications

The HUB HRT-5K™ AM is designed for compact rifle and tactical applications where minimizing overall size, weight, and backpressure is a priority. Its HUB mounting interface provides flexibility for users who want to select their preferred compatible mounting system.

Note: Suppressors are regulated firearm accessories. Purchase, transfer, possession, and use are subject to applicable federal, state, and local laws and regulations.

Please check out our special deals on 5.56mm ammo.