LBE Unlimited AR75RBK Ready Build Kit 7.5″ CHF

The LBE Unlimited Ready Build Kit is a compact AR-15 upper assembly centered on a 7.5″ Cold Hammer Forged (CHF) barrel finished in Melonite. Intended for AR pistol or SBR configurations, the kit ships as a complete upper receiver with the dust cover and forward assist installed. It includes a NiB M16-style bolt carrier group, a pinned low-profile gas block with a pistol-length gas tube, a free-floating handguard, a standard charging handle, and an A2 birdcage flash hider with crush washer. Components are engineered for durability and straightforward installation in short-barrel AR platforms.

Key Specifications

• Chambered for .223 REM/5.56 NATO.
• The barrel measures 7.5″ and is Cold Hammer Forged.
• The surface finish is Melonite for improved wear resistance.
• The exterior color is Black.
• Designed to fit AR-15 platforms.
• Model designation: Ready Build Kit.
• Product type categorized as a Kit.
• Subcategory listed as Complete Upper Receivers.
• Includes a NiB M16-style bolt carrier group for initial operation.
• Configured with a pistol-length gas tube pinned in a low-profile gas block.

Purpose-built for compact AR pistol and SBR applications, this Ready Build Kit pairs a short CHF barrel with quality components to provide a durable, ready-to-assemble upper. It makes a practical foundation for a compact, reliable AR platform that accepts further customization to match your intended use.