The Warne 7666M Mountain Tech Picatinny rail is a one-piece, 0 MOA scope base for Savage AccuTrigger short-action, round-receiver centerfire rifles, including Savage models 10, 11, 12, 14 and 16. Precision CNC machined from lightweight 7075/T6 aluminum, it provides a rigid mounting platform with a Mil-Spec hardcoat anodized matte black finish. The 7666M accepts compatible Picatinny and Weaver-style scope rings and is NATO-STANAG compatible. It includes self-centering tapered T-15 Torx mounting screws and black zinc-coated hardware. This is the standard screw version; Savage receivers drilled and tapped for 8-40 screws require the Warne 7664M instead.
The Warne 7666M Mountain Tech rail provides a lightweight, one-piece scope mounting platform for Savage AccuTrigger short-action rifles with round receivers. Designed for Savage centerfire models including the 10, 11, 12, 14 and 16, this rail combines precision-machined 7075/T6 aluminum construction with a Mil-Spec hardcoat anodized finish. Its 0 MOA configuration provides a level mounting surface without built-in elevation, making it a practical choice for hunting, recreational shooting and applications where a conventional scope mounting angle is preferred.
Mountain Tech rails are designed to reduce mounting-system weight while maintaining a strong, rigid platform. The 7666M features self-centering tapered T-15 Torx mounting screws and black zinc-coated hardware for added corrosion protection. Its Picatinny and Weaver-style compatibility provides flexibility when selecting scope rings, while the NATO-STANAG-compatible design supports standard cross-slot mounting systems.
| Manufacturer | Warne |
| Series | Mountain Tech |
| Part Number | 7666M |
| Product Type | One-Piece Picatinny Rail |
| Compatible Firearm | Savage AccuTrigger Round Receiver |
| Compatible Models | Savage 10, 11, 12, 14 and 16 |
| Action | Short Action |
| Receiver Screw Pattern | Standard 6-48 |
| Elevation | 0 MOA |
| Material | 7075/T6 Aluminum |
| Finish | Matte Black Mil-Spec Hardcoat Anodized |
| Mounting Interface | Picatinny / Weaver / NATO-STANAG |
| Mounting Hardware | Self-Centering Tapered T-15 Torx Screws |
| Weight | 1.9 oz |
| UPC | 656813105502 |
| Country of Manufacture | USA |
The Warne 7666M fits Savage AccuTrigger short-action rifles with round receivers, including centerfire models 10, 11, 12, 14 and 16. It is designed for the standard receiver mounting screw configuration. Savage rifles with receivers drilled and tapped for 8-40 mounting screws require the Warne 7664M instead. This distinction is important because the two rails are not interchangeable when the receiver screw sizes differ.
The 7666M has a 0 MOA mounting surface, meaning the rail does not introduce built-in elevation into the scope mounting system. For the same Savage AccuTrigger short-action fitment, Warne also offers the 7666M-20MOA Mountain Tech rail. The 20 MOA version angles the scope mounting surface to provide additional elevation adjustment for longer-range shooting. Choose the 0 MOA version for a level mounting platform or the 20 MOA version when additional elevation travel is useful for your shooting distances.
Warne Mountain Tech rails are precision CNC machined from 7075/T6 aluminum, providing a strong mounting platform with less weight than traditional steel bases. The Mil-Spec hardcoat anodized finish helps resist abrasion and corrosion. Black zinc-coated mounting hardware adds protection against environmental exposure, while the self-centering tapered screws provide a secure connection to the rifle receiver.
The rail accepts compatible Picatinny and Weaver-style scope rings and is NATO-STANAG compatible. Its one-piece design provides a continuous mounting platform, allowing flexibility in ring placement and scope positioning.
The 7666M includes self-centering tapered T-15 Torx mounting screws. The standard 7666M is intended for Savage receivers using 6-48 mounting screws. For receivers drilled and tapped for 8-40 screws, select the Warne 7664M. Warne lists a maximum base-to-receiver screw torque of 25 in-lb for this rail. Use a calibrated torque wrench and follow the rifle manufacturer's mounting instructions.
Not all Savage rifles use the same receiver pattern or mounting hardware. Our Picatinny Rail Fitment Guide explains how to identify your rifle and select a compatible scope base. Confirm the action, receiver configuration and mounting screw size before ordering.