MSAC (Modular Scope Accessory Chassis)

Unlock the full potential of your optic with the MSAC system, choose from a combination of  Level Module, and Lens Modules — all mounted on the precision-machined MSAC chassis.

The Modular Scope Accessory Chassis is a streamlined, highly adaptable platform that saves valuable maintube real estate while giving you the flexibility to configure accessories exactly how you want them. Whether you’re dialing turrets in the field, shooting a timed stage in competition, or preparing for a backcountry hunt, the MSAC delivers a purpose-built solution for serious shooters.

Constructed from 6061 Aluminum with a Type III hardcoat, the complete system offers ultralight durability with ambidextrous compatibility for both right- and left-handed shooters. Like every MK Machining innovation, the MSAC is built for real-world use — from the competition line to the hunting blind — and is backed by our Lifetime Warranty, protecting your investment for as long as you own it with guaranteed performance in the field or on the range.

The MSAC introduces several key benefits:

• Modular design that allows accessories to be mounted, removed, or repositioned with ease, offering potential for future add-ons.
• Saves real estate on the maintube that preserves valuable real estate for other essentials.
• Equal-distance lenses rather than staggering two magnifiers with unequal magnification
• 6061 Aluminum with Type III hardcoat makes for an ultra light and durable construction.
• Ambidextrous compatibility, making it equally suited for left- or right-handed shooters.
• 2-3x magnification lenses depending on how far away the lenses are mounted in relation to the elevation turret
• Scratch Resistant lenses
• Weighs just 1.76oz (50 grams) without hardware

Available for:

• 30mm Main Tubes
• 34mm Main Tubes
• 35mm Main Tubes
• 36mm Main Tubes

MSAC Weight Breakdown (Without Hardware):

• Complete Set weight: 1.76 oz (50 grams)
• Naked Chassis: 0.56 oz (16 grams)
• Lens Module: 0.42 oz (12 grams)
• Level Module: 0.35 oz (10 grams)