LBE Unlimited Ready Build Kit 13.7in CHF .223 Rem/5.56 NATO

The LBE Unlimited Ready Build Kit assembles a compact AR-15 upper centered on a 13.7-inch cold hammer forged (CHF) barrel finished in melonite. This complete upper-level kit includes a finished upper receiver with dust cover and forward assist, a NiB M16-style bolt carrier group, a pinned gas tube in a low-profile gas block, a charging handle, and an A2 birdcage flash hider with crush washer. Built for compact AR pistol or SBR configurations, it provides a reliable, serviceable foundation for close-quarters and compact shooting platforms.

Key Specifications

• The caliber is .223 Rem/5.56 NATO.
• The barrel length is 13.7 inches.
• The finish is Melonite.
• The color is Black.
• The product type is Kit.
• The fit is designed for AR-15 platforms.
• The model designation is Ready Build Kit.
• The kit includes a NiB M16-style bolt carrier group.
• The upper ships with dust cover and forward assist installed.
• The kit includes an A2 birdcage flash hider with crush washer.

This Ready Build Kit from LBE Unlimited pairs a durable CHF barrel and quality components to give builders a compact, ready-to-customize upper. With its melonite finish and proven hardware, it suits those assembling an AR pistol or short-barrel rifle who want a straightforward, dependable starting point for further customization and use.