KAC Knights Armament Company 7.62MM SR-25K3 16" Upper Receiver Kit 121479

Labor Day Sale Does Not Apply To This Upper

The Knights Armament 7.62mm SR-25K3 16″ Upper Receiver Kit delivers elite M110K3 performance for custom AR-10 builds. Forged from aerospace-grade 7075-T6 aluminum with a Type III hardcoat black anodized finish, this upper features integrated M4 feed ramps for flawless .308 Winchester and 7.62x51mm NATO feeding. It combines lightweight tactical maneuverability with military-grade ruggedness to satisfy demanding professional and competitive shooters.

This kit centers on a 16-inch 416R stainless steel barrel utilizing precision 5R rifling and a 1:10 twist rate to maximize long-range accuracy. The impact-resistant URX6 M-LOK handguard offers seven-sided modular attachment points alongside a continuous MIL-STD-1913 top rail. Operating reliability is further optimized by an advanced dual-ejector enhanced bolt system that efficiently manages backpressure in both suppressed and unsuppressed configurations.