Stern Defense Pistol Upper 9mm Ar-15 8.5 Inch Melonite 1:10

The Stern Defense Pistol Upper 9MM is a complete AR-15 SD MOD 5 upper receiver built for versatility, reliability, and performance, featuring a durable 8.5-inch steel barrel finished in Melonite and a precise 1:10 twist that stabilizes standard 9mm Luger projectiles for consistent cycling and accuracy. Made in the USA, this upper delivers a robust platform designed for M-LOK compatibility, enabling streamlined accessory mounting while maintaining a lightweight profile for rapid handling and quic