AR-15 SD Mod 5 9mm Upper Receivers M-LOK Complete - SD Mod 5 9mm Upper Receiver 8.5in M-LOK Complete Black

Stern Defense

Resumen

The Stern Defense SD Mod 5 9mm Upper Receiver is a complete assembly designed for AR-9 platforms, featuring an 8.5-inch barrel optimized for 9mm ammunition. This upper receiver allows builders to achieve compact, reliable performance while maintaining the familiar ergonomics of the AR-15 style. The black finish adds a tactical aesthetic, making it a suitable choice for pistol caliber carbine builds and other compact applications where maneuverability and accuracy are key.