Chassis Tab .25 Hole .083 Thick

The U-B Machine Chassis Tab .25 Hole .083 Thick is a precision-engineered body mounting tab designed for firearm chassis systems and tactical equipment platforms. Manufactured from steel in a natural finish, this gusseted mounting tab provides a rigid, corrosion-resistant connection point for securing chassis components, accessory rails, and body-mounted hardware. The .25-inch (1/4") mounting hole accommodates standard fastener sizes, while the .083-inch material thickness delivers optimal balance between structural rigidity and weight efficiency—critical for tactical platforms where every ounce impacts handling and accuracy.

The gusseted design reinforces stress concentration points where loads transfer between the tab and mounting surface, extending fatigue life under repeated installation cycles and dynamic use. At just 0.03 lbs per unit, the tab's compact footprint (1.7 x 0.3 x 2.9 inches) integrates seamlessly into modular chassis architectures without adding bulk. Steel construction resists deformation from torque loads, ensuring repeatable component alignment shot after shot. The natural finish accepts standard industrial coatings if corrosion protection beyond bare steel is required for specific environments.

This component suits gunsmiths, chassis manufacturers, and precision rifle builders who require dependable body-mounted fastening solutions. Whether configuring competition platforms, tactical rifles, or custom firearms builds, standardized tabs like this U-B Machine part eliminate design work and compatibility questions. Part number 55-0190 is a direct replacement and upgrade component for existing chassis systems requiring reinforced mounting geometry.

Body mounting tabs are foundational hardware in modern modular firearm architecture, allowing secure attachment of stocks, optic bases, handguards, and rail systems without drilling into primary receiver structures. Quality steel tabs prevent loosening under recoil and environmental stress, directly affecting zero retention and system reliability.