Rear Cover Gasket w/ Steel Insert

The Rear Cover Gasket with Steel Insert (model RRC-1340) is a precision-engineered sealing component designed for tactical rifle platforms and precision weapon systems. Built by Diversified Machine, a trusted OEM supplier for law enforcement and military armorers, this gasket assembly serves as a critical interface seal between the receiver cover and upper receiver on modern rifle systems. This component is essential for maintaining environmental integrity and dust mitigation in high-round-count and adverse-condition deployments.

The integrated steel insert provides structural rigidity and pressure distribution, preventing gasket compression under repeated cycling and thermal stress. The gasket material is engineered to resist degradation from solvents, lubricants, and environmental contaminants common in field conditions. Weighing 0.06 lbs and measuring 9.05 x 0.55 x 10 inches, this assembly is designed for maximum durability without adding significant weight.

This gasket is ideal for armored professionals, precision rifle builders, and military platform maintenance—particularly in settings where weapon reliability and environmental sealing are non-negotiable. Installation is straightforward for gunsmiths and qualified technicians, requiring only the removal of the receiver cover and the gasket's direct swap with the new assembly.