BOLT 5/16in X 3/4in (MOP AR)-12

The BOLT 5/16in X 3/4in (MOP AR)-12 from SCHOENFELD is a precision fastener engineered for tactical rifle builds, armor plate carriers, and modular platform assembly. This hex-head bolt serves as a critical component in AR-pattern weapon systems and military-grade equipment, where reliability under high stress is non-negotiable. Whether you're building a custom tactical rifle, maintaining duty gear, or assembling modular defense systems, this fastener delivers the dependable hardware that separates professional-grade setups from compromised alternatives.

Manufactured to exacting standards, the 5/16-inch diameter bolt with 3/4-inch length provides optimal clamping force for receiver accessories, rail systems, and mounting interfaces common to AR-15 and AR-10 platforms. The MOP (Military Operations Profile) designation confirms this fastener meets military specifications for corrosion resistance and tensile strength, critical in field conditions where equipment exposure to moisture and thermal cycling is unavoidable. At just 0.325 lbs, the compact 2 x 1 x 3-inch profile minimizes weight penalty while maintaining the structural integrity demanded by modern tactical configurations. Steel construction with appropriate hardening ensures the bolt resists stripping and maintains zero-shift integrity across extended shooting sessions.

Law enforcement armorsmiths, military personnel, and serious civilian builders rely on SCHOENFELD fasteners for upper and lower receiver integration, optic mount securement, and rail attachment on AR-pattern rifles. This bolt is particularly suited for applications requiring vibration resistance—picatinny rail systems, KeyMod or M-LOK accessory mounting, and receiver extension work all benefit from proper fastener specification. Stock multiples in your spare parts kit; having the correct size and grade fastener on hand prevents field modifications and maintains equipment consistency across your platform inventory.