Stern Defense 9mm Pistol Upper – 6″ Barrel, M-LOK Rail

Upgrade your AR-15 with the Stern Defense 9mm Pistol Upper featuring a durable 6" Melonite-finished barrel and an 8" M-LOK rail. Designed for precision, this complete upper includes a bolt and a GLOCK cut upper, compatible with GLOCK cut lowers or Stern adapters. The 1:10" twist rate ensures exceptional accuracy, while the SD HBC 9mm blast can enhances performance. Proudly made in the USA, this upper is perfect for shooters seeking reliability and versatility in their firearm components.