Gemtech Quickmount Flash Hider Suppressor Mount for AR-15, 1/2"-28 Thread, Steel Matte Finish
- Firearm Group:
- AR Platform
- Finish-Color:
- Black
- Model:
- Quickmounts
- Size:
- 1/2x28
- Material:
- Steel
- Thread Pattern:
- 1/2"-28 tpi
- Dimensions:
- 2.4"
The Gemtech Quickmount Flash Hider Suppressor Mount for AR-15 is a 1/2"-28 threaded muzzle device engineered to work seamlessly with Gemtech's suppressor line while controlling flash and keeping your rifle running clean. Built on decades of suppressor experience and refined through extensive user feedback, this mount bridges your barrel and suppressor with precision engineering that handles both duty and hunting applications. The steel construction with matte finish resists corrosion and blends naturally with modern AR platforms.
What sets this flash hider apart is its aggressive internal geometry—those built-in carbon-cutting grooves do real work between cleaning sessions, shedding buildup that can lock suppressors in place. The design keeps your can from getting stuck, a practical detail that matters when you're running suppressed rifles regularly. The extended area behind the lugs accommodates short-barrel rifles, so whether you're running a 14.5" or shorter setup, you've got compatibility. At 2.4" overall length, it's proportioned for modern carbines and comes pre-drilled for pinning on 14.5" barrels if your build requires a permanent installation.
Installation is straightforward thanks to oversize 3/4" wrench flats that provide solid grip without slipping. The package includes a precision mounting shim kit, letting you dial in indexing with your suppressor for consistent performance and alignment. A BFA (Blank Firing Adapter) groove opens training and specialty-round options. Quickmount lugs make this compatible across Gemtech's 5.56mm and .30-caliber suppressor lineup, so if you're building a suppressed AR ecosystem, this mount adapts to your growing collection.
Key Features
- Quickmount compatible with Gemtech 5.56mm and .30-caliber suppressors
- Aggressive internal carbon-cutting grooves reduce buildup and prevent suppressor seizing
- 1/2"-28 thread pitch (standard AR-15 muzzle)
- Large 3/4" wrench flats for secure installation without slipping
- Precision mounting shim kit included for indexing and alignment
- Extended lug design supports short-barrel rifle configurations
- Pre-drilled for pinning on 14.5" barrels
- BFA groove for blank-firing adapter compatibility
- 2.4" overall length
- Steel construction, matte finish
Specifications
| Brand | Gemtech |
| Product Type | Flash Hider / Suppressor Mount |
| Thread Pitch | 1/2"-28 |
| Mount Type | Quickmount (Gemtech) |
| Caliber Compatibility | 5.56mm and .30-caliber suppressors |
| Overall Length | 2.4" |
| Material | Steel |
| Finish | Matte |
| Wrench Flat Size | 3/4" |
| Included Accessories | Precision mounting shim kit |
Frequently Asked Questions
Will this Gemtech flash hider work with my suppressor?
Yes, if your suppressor is a Gemtech 5.56mm or .30-caliber model equipped with Quickmount lugs. The Quickmount system integrates across Gemtech's suppressor lineup for consistent performance and easy swapping.
Can I use this mount on a short-barrel AR?
Yes. The design includes an extended area behind the lugs specifically to accommodate short-barrel rifles, and it comes pre-drilled for pinning on 14.5" barrels if you need a permanent installation.
What's included with the flash hider?
The mount comes with a precision mounting shim kit, which allows you to fine-tune indexing and alignment between the muzzle device and your suppressor for optimal performance.
How do the carbon-cutting grooves help?
The aggressive internal grooves are designed to shed carbon buildup that accumulates during suppressed fire, reducing the risk of your suppressor seizing or sticking to the mount between cleanings.

