The Stern Defense 16.1" 45 ACP Upper Receiver is a high-performance upgrade for your firearm designed for precision and durability. It features a robust 16.1-inch barrel crafted from 4150 Chrome Moly Steel finished in sleek Black Melonite for corrosion resistance. This upper receiver includes a 15-inch MLOK rail providing ample space for attachments and accessories enhancing your shooting experience. It comes equipped with a SD CB45 compensator to reduce muzzle rise allowing for quicker follow-up shots. The assembly includes a Glock cut bolt and an enhanced charging handle offering smooth and reliable operation. The anodized finish of the receiver adds an additional layer of durability making it a worthy addition for any firearm enthusiast seeking quality and performance.