DPMS DP51655120177 16" 5.56 NATO M-LOK Upper

DPMS DP51655120177 Upper Receiver Assembly

This DPMS upper receiver represents a straightforward, no-nonsense approach to AR-15 construction. Built around a 16-inch barrel chambered in 5.56 NATO, it delivers the velocity and accuracy shooters have relied on for decades.

Key Features

• Barrel Length: 16 inches—the sweet spot for most shooting applications
• Caliber: 5.56 NATO—widely available ammunition and proven performance
• Handguard: 13.5-inch M-LOK system for modern accessory mounting
• Complete Upper Assembly: Ready to mate with your lower receiver

What You Get

This is a complete upper receiver assembly, meaning it includes the barrel, bolt carrier group, and charging handle. You'll need a compatible lower receiver to complete your rifle.

Why This Matters

The 16-inch barrel length offers a practical balance between velocity and handling. The M-LOK handguard provides genuine utility for mounting lights, grips, and other tactical accessories without the bulk of older systems. DPMS delivers solid, reliable components at a fair price point—ideal whether you're building your first AR or adding to your collection.

This upper works with standard AR-15 lower receivers and accepts all common 5.56 NATO ammunition.