Mechanically-locked ARCA rail system with five included weights for precision rifle tuning. Fits most modern precision stocks with universal mounting compatibility.
The Arcalock represents a significant advancement in ARCA rail technology. Rather than relying on friction alone, this system employs mechanical locking to keep your rail securely in place—a proven design that has earned widespread adoption among precision shooters since its 2018 introduction.
This 14.25" rail is engineered to fit approximately 98% of modern precision rifle stocks, including:
The system includes t-nut hardware for custom attachment points if your stock's mounting holes don't align perfectly with the rail slots. While the rail can be attached to M-LOK systems, M-LOK hardware is sold separately.
Precision shooters understand that rifle balance and weight distribution directly affect performance. This system delivers genuine tuning capability:
Add or remove weights to achieve your ideal rifle balance and recoil characteristics.
This is a purpose-built system for shooters who demand precision and reliability.