KeyMo Hellfire Suppressor Mount
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Plan your Class 3 dealer
Suppressors go through a Class 3 (SOT) dealer. The federal tax is $0, and ATF stopped enforcing the Form 4 wait on October 9, 2026, but some states still require federal registration. You still pay the dealer's transfer fee.
Area 419
Overview
The KeyMo Hellfire Suppressor Mount by AREA 419 utilizes the KeyMo mounting system, designed for quick attachment and detachment of suppressors. This mount enables seamless compatibility with a range of suppressor options, ensuring that you can easily switch between configurations depending on your shooting needs. This mount is commonly found in precision rifle builds where versatility and efficiency are essential for the shooter.
Specifications
Price and stock
Availability is good for the Area 419 KeyMo Hellfire Suppressor Mount: it was in stock at one retailer or another nearly every day in September 2026, and today only Brownells has it in stock. Prices barely moved in September 2026, holding around $150, so there haven't been real sales lately. Buying today, the lowest price is $150 at Brownells, which matches the best price we saw in September.
Prices checked · refreshed daily across 37 retailers
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