LBE Unlimited AR137RBK 13.7in CHF AR-15 Ready Build Upper Kit (5.56/.223, Black)

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by Lbe Unlimited

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LBE Unlimited AR137RBK 13.7in CHF AR-15 Ready Build Upper Kit (5.56/.223, Black)

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Retail: $612.49

Product Description

The LBE Unlimited Ready Build Kit (AR137RBK) is a compact AR-15 upper build kit designed for shooters who want a durable, performance-focused foundation for a custom build. Centered around a premium 13.7-inch cold hammer forged (CHF) barrel, this kit includes key upper components such as the upper receiver, barrel assembly, and the gas system parts needed to complete the upper.

Product Highlights

  • Premium 13.7-inch cold hammer forged barrel for long service life and consistent performance
  • Ready-build AR-15 upper kit format for a custom upper assembly
  • Includes upper receiver and essential gas system components (gas block and gas tube)
  • Configured for .223 Remington / 5.56 NATO chambering
  • Black finish

Specs

  • Brand: LBE Unlimited
  • Model: Ready Build Kit
  • Manufacturer Part Number: AR137RBK
  • UPC: 706612408141
  • Platform Fit: AR-15
  • Barrel Length: 13.7 in
  • Barrel Type: Cold Hammer-Forged
  • Caliber: 5.56x45mm NATO / .223 Remington
  • Finish: Melonite
  • Approx. Weight: 3.44 lb (as listed)

Specifications

Manufacturer:
Lbe Unlimited
Category:
upper-receiver
Caliber:
5.56x45mm NATO
Platforms:
AR-15
Weight:
54.99 oz (3.44 lbs)
Length:
13.7"
UPC:
8229027250298
MPN:
AR137RBK
Required Component:
Yes

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Where to Buy

TLO Outdoors
In Stock
$556.98

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What's Included in this Bundle

Barrel $556.98
13.7in Cold Hammer Forged Barrel
Premium 13.7-inch cold hammer forged (CHF) barrel (explicitly featured).
Gas Block $556.98
Gas Block (part of included gas system)
Includes essential gas system components (gas block and gas tube).
Gas Tube $556.98
Gas Tube (part of included gas system)
Includes essential gas system components (gas block and gas tube).
Upper Parts Kit $556.98
Upper-parts-kit / Upper receiver completion components (implied)
Implied with complete/ready-build upper kits (not explicitly listed).
Bundle Price: $556.98

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