Stern Defense 45 ACP 16.1″ AR Upper Assembly | M-LOK Rail, Melonite Barrel & Glock-Cut Bolt

Build your ultimate pistol-caliber carbine with the Stern Defense 45 ACP Complete Upper Assembly (Model 015SD15INCHMOD5MLOK161). Engineered for reliability and performance, this ready-to-run upper is purpose-built for shooters who demand the hard-hitting power of .45 ACP in an AR-platform rifle.

At the heart of this assembly is a 16.1-inch .45 ACP barrel finished in durable black Melonite for outstanding corrosion and wear resistance. The upper receiver is crafted from 7075-T6 aluminum with a hard-coat anodized finish, delivering a lightweight yet rugged foundation. A 15-inch M-LOK handguard provides ample rail space for lights, grips, and accessories, while the integrated SD CB45 compensator helps manage muzzle rise and keeps you on target.

**What’s Included:**
– Stern Defense 15″ M-LOK rail (barrel nut, bolts, and hardware included)
– Stern Defense 16.1″ .45 ACP Melonite barrel
– SD CB45 compensator/muzzle brake
– Stern Defense assembled upper receiver with dust cover and forward assist
– SD BU45 Glock-cut bolt (compatible with Glock-pattern .45 ACP magazines)
– SD CH1 enhanced charging handle

Designed to pair with Glock-pattern .45 ACP lower receivers, this complete upper makes it easy to feed your build with widely available Glock magazines. Whether you’re building a home-defense carbine, range shooter, or competition PCC, Stern Defense delivers the precision engineering and quality components to get it done right.

Order online and enjoy fast shipping from Deep Roots Rifle Co, or stop by our gun store in Eustis, Florida, where our knowledgeable staff can help you complete your build.