Griffin Armament HUB HRT-556 AM
IMPORTANT: LIMITED TIME ONLY – Black Finish Only
Your Free $100 Silencer Shop Gift card will be issued after your Form 4 is filed.
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IMPORTANT: LIMITED TIME ONLY – Black Finish Only
Your Free $100 Silencer Shop Gift card will be issued after your Form 4 is filed.
Get a Free $100 Silencer Shop gift card when you purchase this product through Silencer Shop’s website, for a limited time, you will receive your Silencer Shop gift card via email to the address listed on your Silencer Shop account approximately 48 hours after your eForm 4 is submitted to the ATF. Gift card may be applied to any future transaction on our site. (The Gift Card CANNOT be applied to the tax stamp of this purchase but can be used towards tax stamps on other future orders). Backorders do NOT qualify for this promotion.
The Griffin Armament HUB HRT-556 AM is a HUB-compatible 5.56 NATO suppressor designed with an ultra-low back pressure system to help reduce gas blowback while providing effective sound and flash suppression. Manufactured using Direct Metal Laser Sintering (DMLS), the suppressor combines Nickel 625X™ and 17-4 H900 stainless steel for a durable construction suited to demanding rifle applications. Featuring the industry-standard 1.375x24 HUB rear thread interface, the HUB HRT-556 AM is compatible with Griffin Armament HUB adapters as well as other HUB-compatible mounting systems, allowing users to configure the suppressor to their preferred mounting solution.
The HRT-556 AM incorporates an ultra-low back pressure baffle design and a high-performance flash hider end cap to help reduce gas blowback, recoil impulse, and visible muzzle flash while maintaining consistent suppression performance. The suppressor is full-auto rated, has no minimum barrel length restrictions for compatible rifle calibers, and ships with a Griffin Armament suppressor pouch. A HUB mount adapter and compatible muzzle device are not included and must be purchased separately.
Specifications
- Caliber: .22 Caliber (5.56mm)
- Weight: 14.0 oz
- Dimensions: 5.55 × 1.5 × 1.5 in
- Material:
- 17-4 H900 Stainless Steel
- Nickel 625X™
- Mounting System: HUB (1.375x24)
- Distance to Blast Baffle from Rear of HUB Interface: 1.568 inches
- Full-Auto Rated: Yes
- User Serviceable: No
- Barrel Restrictions: None for Compatible Rifle Calibers
Included in the Box
- HUB HRT-556 AM Suppressor (.22 Caliber)
- Griffin Armament Suppressor Pouch
Features
- Industry-standard 1.375x24 HUB mounting interface
- Ultra-low back pressure design to help reduce gas blowback
- DMLS-manufactured Nickel 625X™ core
- 17-4 H900 stainless steel construction
- Laser-welded printed core with machined rear section
- High-performance flash hider end cap
- Designed to minimize point of impact shift
- Compatible with Griffin Armament HUB adapters and other HUB-compatible mounting systems
- Full-auto rated
- No minimum barrel length restrictions for compatible rifle calibers
| Weight | 14 oz |
|---|---|
| Coating Type | Cerakoteâ„¢ |
| Manufacturer | Griffin Armament |
| Dimensions | 5.55x1.5x1 |





