Dd Bbl Assy 556 11.5" Gov Car W/lpg

The DD Bbl Assy 556 11.5" Gov Car W/LPG from Daniel Defense is a complete upper receiver assembly purpose-built for short-range engagement, CQB operations, and compact tactical platforms. This 11.5-inch 5.56 NATO barrel assembly delivers the ballistic velocity and ergonomic handling demanded by law enforcement tactical teams, military special operations units, and professional shooters who prioritize maneuverability in confined spaces. The government-profile barrel paired with Daniel Defense's renowned precision machining makes this assembly suitable for both duty carbines and precision-tuned patrol rifles.

The 11.5-inch government-profile barrel is constructed to NATO military specifications and optimized for reliability across variable ammunition loads and extended service cycles. The LPG (low-profile gas block) configuration reduces sight-line obstruction and enables seamless integration of modern optic systems while maintaining consistent bolt-carrier velocity and cycling reliability. Daniel Defense's cold-hammer-forged barrel construction ensures dimensional accuracy, superior erosion resistance, and repeatable point-of-aim consistency—critical factors in duty and defensive applications where performance non-negotiable. The compact barrel length achieves approximately 2,700 feet-per-second muzzle velocity with standard 5.56 NATO 62-grain ammunition, providing adequate stopping power while minimizing blast signature and recoil impulse.

This barrel assembly integrates directly into standard AR-15 upper receivers and is compatible with mil-spec lower receivers and bolt-carrier groups. The low-profile gas block design works with both pinned and set-screw configurations, allowing installation flexibility across a range of platform builds. Law enforcement armorers, military gunsmiths, and experienced rifle builders value Daniel Defense barrels for consistent performance in high-round-count training regimens and duty deployments. Proper installation requires adherence to torque specifications and headspace verification—recommended for qualified gunsmiths or those with documented armorer certification.