Posted by MHSA TEAM on Jul 7th 2025
Interface Showdown: Spuhr vs. M-LOK vs. AI Keyslot
In precision shooting, how you mount your gear is just as important as the gear you run. A stable, modular, and easy-to-use interface system can transform your rifle into a rock solid purpose built machine. Today, we break down the pros, strengths, and specialized use cases for three standout systems: Spuhr, M-LOK, and Accuracy International’s Keyslot.
Spuhr: Built for the Hardcore Precision Shooter
Spuhr has developed one of the most innovative and secure interface systems available. Trusted by professionals and elite shooters, Spuhr offers:
- Versatile mounting across a wide range of chassis, mounts and rifle systems.
- Integrated design within their proprietary chassis and mounts to allow multiple touchpoints.
- Precision mounts compatible with Picatinny rails, built with rugged dependability.
- A vast lineup of accessories—from RAPTAR mounts to weights and rails—for fully customized setups.
If you demand absolute stability, modularity, and quality that’s battle-proven, Spuhr stands tall.
M-LOK: Universal, Lightweight, and Proven
M-LOK is the most widely adopted interface system for good reason. Its modular, open-source design provides:
- Lightweight construction without sacrificing strength.
- Vast compatibility with third-party accessories and mounts.
- Ease of use, allowing tool-free adjustments and reconfiguration in the field.
With the release of the M-LOK AT-X chassis, Accuracy International now offers this interface for those who want AI performance with industry-standard modularity.
Shop our M-LOK accessories—carefully curated from the best brands in the industry.
Keyslot: Accuracy International’s Proprietary Interface
The Keyslot system is designed for AI’s rifles and chassis, offering unmatched strength and integration:
- Proprietary fit designed for precision shooters who demand total system stability.
- Integrated with AI’s quick-change barrel system for a seamless shooting experience.
- Tailored accessories like Picatinny rails, flush cups, and weight kits that maintain rifle balance and accuracy.
If you’re running an Accuracy International rifle, Keyslot is your go-to for a purpose-built, bombproof setup.
Which System is Right for You?
Each system has its champions. Spuhr leads in innovation and tactical flexibility. M-LOK is the industry’s universal language. AI’s Keyslot brings proprietary precision to world-class platforms.
At Mile High Shooting, we carry all three systems, along with the necessary parts, mounts, and accessories to build your personalized setup. Whether you’re a hardcore ELR competitor, a weekend PRS competitor or a weekend warrior we have the interface system that fits your needs.
Explore Spuhr, M-LOK, and Keyslot gear at Mile High Shooting.