Grayboe Universal Mini Chassis System Inlet Long Action Howa Black

Overview

The Grayboe Universal Mini Chassis (UMC) is a black, T6 6061 billet aluminum bedding block designed for the Howa 1500 long action. Weighing 14 ounces, it features a durable finish—available in cerakote black or hard coat anodized Type III—and is designed to anchor into Grayboe stocks (including Flagstaff, Core, and Renegade 2 models) using two provided screws. The UMC allows for the interchangeability of different rifles and calibers within the same stock. It is compatible with all AICS magazines and does not require additional bottom metal; magazines click directly into the chassis. An optional adjustable paddle-style release lever is available to provide 0.080-inch of magazine height adjustment for optimized cartridge feeding.

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