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Triad Bullpup Chassis For Foxtrot Mikes Upper Receiver Rifle - Triad Bullpup Chassis For Foxtrot Mike Rifle Upper Receiver
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$664.95
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SKU: 430108949
Overview
Built for Foxtrot Mike upper receiver rifles, this bullpup chassis reconfigures the platform into a more compact setup while keeping the rifle’s controls integrated into the chassis system. It combines aluminum, steel, bronze-bushed linkage components, and a fiber-reinforced polymer main housing to support the trigger and receiver interface. The ambidextrous selector and threaded rear adapter make it a practical option for shooters setting up a compact rifle for range use or field carry where overall length matters. As a chassis system, it is intended for a specific receiver pattern and should be matched carefully to the correct upper receiver rifle.
Why Hunters Choose the A3 Industries
Foxtrot Mikes
Upper receiver rifles
Includes A3
Detent spring and detent
Uses 6061
Aluminum, 7075 aluminum, and 4140
17-4 Stainless
Trigger and linkage parts with
Main Chassis
Housing uses 30% fiber-reinforced injection-molded
Key Features
- Bullpup chassis for Foxtrot Mikes upper receiver rifles
- 6061 aluminum front trigger housing/receiver
- A3 Tactical ambi selector with detent spring and detent
- 30% fiber-reinforced injection-molded Zytel polymer main chassis housing
- 6061 rear threaded buffer adapter and rear butt-plate
- Includes 4140 steel anti-walk trigger pins and 17-4 stainless trigger linkage
Best Used For
- Foxtrot Mike upper receiver owners seeking a bullpup chassis conversion platform
- Hunters wanting a compact rifle setup for easier handling in tight field conditions
- Users prioritizing ambidextrous controls for left- or right-handed operation
- Builders looking for a chassis with aluminum, steel, and polymer structural components
- Shooters assembling a specialized rifle configuration around an existing upper receiver
Specifications
| Ambi Selector | A3 Tactical ambi selector with detent spring and detent |
|---|---|
| Anti Walk Trigger Pins | 4140 steel, x3 |
| Bushings | 841 oil-embedded bronze bushings |
| Front Trigger | 17-4 stainless MIM with QPQ coating |
| Front Trigger Housingreceiver | 6061 aluminum |
| Front Trigger Linkage | 17-4 stainless with QPQ coating |
| Guide | Acetal Delrin |
| Main Chassis Housing | 30% fiber-reinforced injection-molded Zytel polymer |
| Rear Butt Plate | 6061 aluminum |
| Rear Linkage | 7075 aluminum |
| Rear Threaded Buffer Adapter | 6061 aluminum |
| Threaded Chassis Inserts | 4140 steel and 7075 aluminum |
| Transfer Bar | 7075 aluminum |
| Trigger Actuator | Acetal Delrin |
Pros
- Designed specifically for Foxtrot Mikes upper receiver rifles
- Includes an A3 Tactical ambidextrous selector with detent spring and detent
- Uses 6061 aluminum, 7075 aluminum, and 4140 steel components
- Features 17-4 stainless trigger and linkage parts with QPQ coating
- Main chassis housing uses 30% fiber-reinforced injection-molded Zytel polymer
- Includes anti-walk trigger pins and bronze-bushed transfer linkage
Considerations & Trade-offs
- Designed specifically for Foxtrot Mikes upper receiver rifles, so fitment is platform-specific rather than universal.
- The chassis uses a mix of aluminum, steel, bronze-bushed linkage, and reinforced polymer, which may be a trade-off between rigidity, weight, and complexity.
- Bullpup layout changes the rifle’s handling and control placement, so it may require a period of adjustment compared with a conventional setup.
- The product data focuses on chassis components and materials, but does not include complete compatibility details for every upper or accessory configuration.
Suggested Comparisons
- Bullpup rifle chassis systems
- AR-style rifle chassis and conversion systems
- Rifle lower/receiver accessory components
- Ambidextrous rifle control components
Suggested Accessories
- Rifle sling
- Optic mount
- Magazine
- Cleaning kit
Frequently Asked Questions
What rifle setup is this chassis made for?
It is the TRIAD Bullpup Chassis for Foxtrot Mikes upper receiver rifles.
What materials are listed in the chassis construction?
The listed components include 6061 aluminum, 17-4 stainless steel, 4140 steel, 7075 aluminum, Acetal Delrin, and 30% fiber-reinforced injection-molded Zytel polymer.
Does the chassis include an ambidextrous selector?
Yes. The product listing includes an A3 Tactical ambi selector with detent spring and detent.
Are the trigger and linkage parts coated or treated?
The front trigger and front trigger linkage are listed as 17-4 stainless with QPQ coating.
What information is not provided in the product data?
The provided data does not list dimensions, weight, compatibility beyond Foxtrot Mikes upper receiver rifles, or details such as blade steel, country of origin, or warranty terms.