20″ Bull Barrel Complete Upper Barrel Receiver Assembly

$499.95

The Luth-AR 20″ Fluted Bull Barrel Complete Upper Barrel Assembly

This 20″ bull barrel complete upper receiver assembly is the perfect choice for precision shooting. The fluted bull barrel profile provides adds strength for stability, reducing recoil and increasing accuracy. The barrel is made of high-quality stainless steel, providing durability and longevity. The 1-9 twist rate is suitable for stabilizing heavy projectiles. This is an excellent option for shooters who want a heavy barrel with precision shooting in mind.

Starts with our 20″, .223 caliber fluted bull barrel made from 416 SST with a 1-9 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  15″ Palm Handguard® with KeyMod or M-LOK® slots and a Picatinny top-rail.

 

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Description

The Luth-AR 20″ Fluted Bull Barrel Complete Upper Barrel Assembly

Includes:

  • HG-V-15K – Palm Handguard® – Vented 15″ KeyMod or M-LOK® Slots with Barrel Nut
  • BL-B20FT – 20″ Bull Barrel, Fluted, Threaded 416 SST
  • FTT-EA1 – A3 Upper Receiver Assembled
  • BC-A-223 – Fully Assembled Bolt Carrier – .223
  • BL-04 – Rifle Length Gas Tube
  • GB-LP936 – Gas Block .936
  • 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:

  • 20″ Fluted Bull Barrel
  • .223 Rem
  • 416 SS
  • Threaded Barrel — Thread Pitch 1/2 x 28
  • Gas Block Diameter .936
  • Gas Tube Length — 16″ Carbine, 18″, 20″, and 24″ are Rifle
  • 1-9 RH Barrel Twist
  • 6 Lands and Groves
  • M4 Feed Ramp
  • Button Broached

SKU: FTBL-B20 — KeyMod

SKU: FTBL-B20-M — M-LOK®

Additional information

Application

AR15

Caliber

.223 Rem

Slot Style

KeyMod, MLOK™, Smooth

UPC Code

FTBL-B20 812058030157

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