LBE Unlimited Ready Build Kit – Complete Upper Receiver

Experience unmatched reliability and precision with the LBE Unlimited Ready Build Kit. Engineered for shooters who demand a plug‑and‑play solution, this kit includes every critical component needed to assemble a high‑quality AR‑15 upper. Whether you’re building a competition rifle, a tactical platform, or a versatile home‑defense gun, this kit delivers the performance you expect from a premium LBE Unlimited build.

Key Features & Benefits

• Complete Upper Receiver Set – Fully machined, anodized aluminum receiver for a flawless fit.
• 13.7" Cold Hammer Forged Barrel – Provides superior accuracy, durability, and a balanced length for both 223 Remington and 5.56 NATO.
• Caliber Compatibility – Chambered for 223 Remington and 5.56 NATO, giving you flexibility for a wide range of ammunition.
• A2 Flash Hider – Reduces muzzle flash and helps maintain a low profile during night operations.
• Mid‑Length Gas System – Optimizes reliability while minimizing recoil and wear on moving parts.
• M16 Bolt Carrier Group (BCG) – Proven design for smooth cycling and enhanced durability.
• Standard Charging Handle – Ergonomic and easy to manipulate, ensuring rapid bolt manipulation.
• Black Finish – Model AR137RBK – Sleek, non‑reflective coating that blends seamlessly with any lower receiver.
• UPC: 706612408141 – Verified product identifier for easy inventory and ordering.

Why Choose LBE Unlimited?

LBE Unlimited has built a reputation for producing top‑tier AR‑15 components that meet the exacting standards of professionals, law‑enforcement agencies, and serious enthusiasts. Each component in the Ready Build Kit undergoes rigorous testing, ensuring:

• Consistent shot‑to‑shot accuracy
• Extended barrel life through cold hammer forging
• Reliable cycling under adverse conditions
• Easy integration with any LBE Unlimited lower receiver

Installation & Compatibility

The kit is designed for quick and straightforward assembly. All parts are pre‑matched and come with detailed installation instructions, making it an ideal choice for both first‑time builders and seasoned gunsmiths. Compatibility includes:

• Standard Mil‑Spec AR‑15 lowers
• Direct‑Thread 5/8‑24 barrel mount
• Standard buffer tubes and stocks

Ideal Applications

Whether you're planning a competition platform, a tactical rifle, or a versatile all‑day shooter, this Ready Build Kit covers all bases:

• Target shooting & precision rifle competitions
• Tactical and law‑enforcement training
• Home defense and personal protection
• Recreational plinking and range practice

Technical Specifications

Customer Assurance

LBE Unlimited stands behind every product with a comprehensive warranty and dedicated customer support. If you have any questions about installation, performance, or parts compatibility, our team is ready to help you get the most out of your new build kit.

Ready to upgrade your AR‑15? Add the LBE Unlimited Ready Build Kit to your cart today and experience the difference of premium engineering.

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