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Fatboy Tripods
The Fatboy Tripods Universal Arca Rail 12 is a 12-inch Arca-Swiss mounting solution designed for rifle stocks that lack factory M-LOK or KeyMod slots. If you're running a traditional, custom, or older modular rifle stock and want to add tripod stability to your shooting setup, this rail bridges the gap between non-equipped stocks and modern tripod systems. Made in the USA from lightweight, high-strength materials, it mounts directly to flat-bottom or semi-flat-bottom stocks and accepts any standard Arca-Swiss clamp.
Long-range hunters, precision rifle shooters, and backcountry hunters benefit most from extended Arca rails—the extra length distributes weight and recoil more evenly across your tripod's head, improving control and reducing fatigue during extended shooting sessions. The 12-inch profile gives you mounting flexibility when positioning your rifle on a tripod and helps dial in consistent sight picture and elevation adjustments without fussing with clamp placement.
Compatibility is straightforward: if your tripod head uses a standard 1.5-inch (38mm) Arca-Swiss clamp, this rail works. The universal design makes it a practical upgrade path for shooters who've invested in quality tripods but haven't yet standardized their rifle stocks to pre-drilled Arca configurations.
| Brand | Fatboy Tripods |
| Product | Universal Arca Rail 12 |
| Rail Length | 12 inches |
| Arca-Swiss Compatibility | 1.5 inch (38mm) standard clamps |
| Stock Compatibility | Flat-bottom and semi-flat-bottom stocks without M-LOK or KeyMod |
| Origin | Made in USA |
Yes, if your stock has a flat or semi-flat bottom without M-LOK or KeyMod slots, this rail will mount directly to it. It's designed specifically for stocks that don't feature modern modular rail systems.
Any tripod head that uses a standard 1.5-inch (38mm) Arca-Swiss clamp will work with this rail. This is the most common Arca-Swiss size in the market.
The extended 12-inch length distributes recoil and weight more evenly across your tripod head, improving stability and balance during long-range shooting and backcountry hunting. The extra surface area also gives you more flexibility in positioning your rifle on the clamp.
Yes, the Fatboy Tripods Universal Arca Rail 12 is 100% manufactured in the USA.
Fatboy Tripods
The Fatboy Tripods Universal Arca Rail 12 is a 12-inch Arca-Swiss mounting solution designed for rifle stocks that lack factory M-LOK or KeyMod slots. If you're running a traditional, custom, or older modular rifle stock and want to add tripod stability to your shooting setup, this rail bridges the gap between non-equipped stocks and modern tripod systems. Made in the USA from lightweight, high-strength materials, it mounts directly to flat-bottom or semi-flat-bottom stocks and accepts any standard Arca-Swiss clamp.
Long-range hunters, precision rifle shooters, and backcountry hunters benefit most from extended Arca rails—the extra length distributes weight and recoil more evenly across your tripod's head, improving control and reducing fatigue during extended shooting sessions. The 12-inch profile gives you mounting flexibility when positioning your rifle on a tripod and helps dial in consistent sight picture and elevation adjustments without fussing with clamp placement.
Compatibility is straightforward: if your tripod head uses a standard 1.5-inch (38mm) Arca-Swiss clamp, this rail works. The universal design makes it a practical upgrade path for shooters who've invested in quality tripods but haven't yet standardized their rifle stocks to pre-drilled Arca configurations.
| Brand | Fatboy Tripods |
| Product | Universal Arca Rail 12 |
| Rail Length | 12 inches |
| Arca-Swiss Compatibility | 1.5 inch (38mm) standard clamps |
| Stock Compatibility | Flat-bottom and semi-flat-bottom stocks without M-LOK or KeyMod |
| Origin | Made in USA |
Yes, if your stock has a flat or semi-flat bottom without M-LOK or KeyMod slots, this rail will mount directly to it. It's designed specifically for stocks that don't feature modern modular rail systems.
Any tripod head that uses a standard 1.5-inch (38mm) Arca-Swiss clamp will work with this rail. This is the most common Arca-Swiss size in the market.
The extended 12-inch length distributes recoil and weight more evenly across your tripod head, improving stability and balance during long-range shooting and backcountry hunting. The extra surface area also gives you more flexibility in positioning your rifle on the clamp.
Yes, the Fatboy Tripods Universal Arca Rail 12 is 100% manufactured in the USA.
