MK 0 STRIPPED RECEIVER SET

The foundation of a rifle determines everything built on it. The MK 0 Stripped Receiver Set is made for people who treat that foundation seriously.

Every set is hand-fit in our shop. Each upper and lower is paired individually, and the fit is checked and adjusted by hand to achieve tight, consistent lock-up with minimal play.

Both receivers are machined from American-made 7075-T651 forged aluminum to exceed Mil-Spec tolerances and finished in Class 2 Type 3 hard coat anodize for durable wear and corrosion resistance. The lower has a flared magwell for fast, consistent reloads. The upper has M4 feed ramps for reliable feeding across a wide range of ammunition and magazines.

Whether the build is intended for duty, competition, or dedicated range use, the MK 0 provides a platform built to perform without compromise.

Made in the USA by Zero Group MFG, New Fairfield, CT.

Key Features

• Hand-fit upper and lower pairs, with the fit checked and adjusted for tight lock-up
• 7075-T651 forged aluminum, machined to exceed Mil-Spec tolerances
• Class 2 Type 3 hard coat anodize
• Flared magwell on the lower
• M4 feed ramps on the upper

This product must ship to an FFL.