11.5″ Lightweight 1-7 Twist Complete Upper Barrel Receiver Assembly

$414.99

The Luth-AR 11.5″ 1-7 Twist Lightweight Complete Upper Barrel Assembly

This 11.5″ complete upper barrel assembly is a lightweight and durable option for your next build. With a 1-7 twist rate, it is optimized for stabilizing a wide range of bullet weights. The assembly includes a barrel, handguard, gas block, and gas tube, making it easy to install and get to the range. This is a perfect choice for shooters looking for a high-quality and lightweight barrel at an affordable price.

Starts with our 11.5″, 5.56mm Lightweight barrel made from 4150 Chrome Molly with a 1-7″ twist mated to our A3 Flattop receiver which includes our bolt carrier, charging handle, forward assist and ejection port cover. The upper is then topped off with our lo-profile gas system and our ergonomic  9″ Palm Handguard® with choice of KeyMod, MLOK® slots and a Picatinny top-rail.

*Disclaimer: These parts are replacement parts for existing and legally owned NFA firearms. Installing a barrel under the legal length may constitute a violation of Federal or State law. All NFA requirements must be followed.

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Description

The Luth-AR 11.5″ 1-7 Twist Lightweight Complete Upper Barrel Assembly

Includes:

  • Palm Handguard® – Available Options
    • 9″ KeyMod with Barrel Nut
    • 9″ MLOK® with Barrel Nut
  • BL-L11 – 11.5″ Lightweight Barrel
  • FTT-EA1 – A3 Upper Receiver Assembled
  • BC-A-223 – Fully Assembled Bolt Carrier – .223/5.56mm
  • BL-04A – Carbine Gas Tube
  • GB-LP750 – Gas Block .750
  • UR-19 — Charging Handle
  • BL-06-A2 — A2 Flash Hider

Upper Specs:

  • 7075-T6 Forging
  • Hard coat anodize Black

Bolt Specs:

  • Bolt: Carpenter 158 steel
  • Extractor: 4140 Alloy steel
  • Army Spec Heat Treatment
  • Manganese Phosphate

Bolt Carrier Specs:

  • Carrier: 8620 steel
  • Cam pin: 4340 Alloy steel
  • Carrier key: 4130 Alloy steel
  • Army Spec Heat Treatment
  • Manganese Phosphate

Barrel Specs:

Lightweight 11.5″ Barrel

  • Available in 11.5″
  • 5.56 mm
  • 4150 Chrome Moly
  • Threaded Barrel — Thread Pitch 1/2 x 28
  • Gas Block Diameter .750
  • Gas Tube Length — Carbine
  • 1-7 RH Barrel Twist
  • 6 Lands and Groves
  • M4 Feed Ramp
  • Button Broached
  • Not chrome lined

SKU: BA-11-7K   KeyMod

SKU: BA-11-7M   M-LOK®

Additional information

Application

AR15

Caliber

.556 mm

Style

A3 Flattop

Feed Ramp

M4

Slot Style

KeyMod, MLOK™, Smooth

Lands and Grooves

6

Thread Pitch

1/2 x 28

Threaded

Yes

Material

4150 Chrome Molly

Twist

1-7

UPC Code

812058031901

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