Dead Air Armament KeyMo 46 Muzzle Brake - .46 Caliber - .578X28
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- Free standard shipping on orders $139+ details
- 90-day no-hassle returns policy
- Backed by the Dead Air Warranty! what it covers
Product description
Dead Air KeyMo 46 Muzzle Brake – .578×28 Big Bore QD Mount with No-Shim Install
Features
- KeyMo quick-detach suppressor mounting system
- .46 caliber bore supports cartridges up to .458
- Muzzle-seating design eliminates need for shims
- Works with barrels that have minimal or no shoulder
- Brake ports designed to manage gas inside the suppressor
- Helps reduce carbon lock during suppressor removal
- 4140 heat-treated steel construction
- Black nitride finish for corrosion and wear resistance
The Dead Air KeyMo 46 Muzzle Brake is built for big bore setups that require both recoil control and a reliable suppressor mounting interface. Its muzzle-seating design allows proper installation without shims, making it a practical option for barrels that lack a traditional shoulder.
Port geometry is tuned to manage gas flow within the suppressor, which can help with consistency and reduce the chance of carbon lock during removal. It’s a purpose-built option for shooters running larger calibers on KeyMo-equipped suppressor systems.
Note: Always verify suppressor caliber ratings before use. This mount supports up to .46 caliber, but suppressor limitations still apply.
Specifications
- Brand: Dead Air Armament
- Model: KeyMo 46 Muzzle Brake
- MPN: DA160
- Type: Muzzle Brake / Suppressor Mount
- Caliber: .46 (supports up to .458)
- Thread Pitch: .578×28
- Material: 4140 Heat-Treated Steel
- Finish: Black Nitride
- Length: 2.58″
- Weight: 3.5 oz
- Compatibility: Dead Air KeyMo-compatible suppressor mounts/adapters
What’s Included
- 1x Dead Air KeyMo 46 Muzzle Brake (.578×28)
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Questions & Answers
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Warranty & returns
Backed by the Dead Air Warranty!
Dead Air Armament Warranty
We provide a lifetime warranty against all manufacturing defects and damages caused by the normal use of this product. The manufacturer will repair or replace free of charge any suppressor manufactured by, or at the direction of, Sound Moderation Technologies. The product is sold “as is” with no further implied contractual rights or warranties beyond those expressly stated herein.
The warranty does not apply to certain conditions or acts. It is at the sole discretion and determination of Sound Moderation Technologies if a particular defect or condition is covered by this warranty.
Conditions not covered include, but are not limited to: modifications, abuse, neglect, use of defective ammunition, use of improperly sized ammunition, and criminal conduct.
Sound Moderation Technologies assumes no liability for damages or bodily injury caused by such acts or omissions as previously described. Abuse and neglect are defined as usage outside of the reasonable scope for which the product is intended, thus contributing to the accelerated and unreasonable premature wear of the suppressor itself.
To submit a warranty claim please submit the online form here and have the below ready
• Your Product In-hand
• A photo of your ID
• A copy of your Form 3 or Form 4
Notice:
DO NOT SHIP THE SUPPRESSOR FOR REPAIR WITHOUT FIRST COMPLETING THE FORM AND RECEIVING A CONFIRMED RMA NUMBER. DO NOT SHIP IN ANY EVENT WITHOUT A COPY OF THE APPROVED BATF FORM.
When you ship the suppressor back to the manufacturer, please include a printed copy of the completed RMA form.
If for any reason your suppressor is not eligible for repair or replacement, you may purchase a replacement suppressor for 50% off the MSRP for the same or similar suppressor. Please contact our Customer Service Department for further details and requirements.
Contact Details:
Telephone: (844) 293-6778.
Disclaimer: Manufacturer’s warranty is subject to change without prior notice.
90-day no-hassle returns
The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.
If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.
