Complete 20″ Fluted Bull Barrel AR Rifle Kit

$624.99

Build a Complete 20″ .223 Rem Fluted Bull Barrel, AR Rifle Kit.

Introducing our 20″ .223 Rem fluted bull barrel AR rifle kit, the ultimate choice for precision and accuracy. Built with high-quality components, this kit includes a 20″ fluted bull barrel, a complete upper receiver and a lower parts kit. Easy to assemble, this kit is perfect for the gun enthusiast looking to build a custom rifle.

This kit contains everything you need to build your own AR except the stripped lower receiver.

The Kit Contains:

  • Fully assembled 20″ .223 Rem Fluted Bull Barrel Upper with 15″ Keymod or M-LOK® Palm Handguard®
  • MBA-1 Buttstock Assembly (Black)
  • Complete Lower Parts Kit
  • Complete description is listed below.

Add to your build with optional add-on parts such as a MTA™  – Modular Trigger Assembly™, or The Lower Enhanc-AR® Kit.

Complete description below.

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Description

Build a Complete 20″ .223 Rem Fluted Bull Barrel, AR Rifle Kit.

This kit contains everything you need to build your own AR except the stripped lower receiver.

The Kit Contains:

  • Fully assembled 20″ .223 Rem Fluted Bull Barrel Upper with 15″ M-LOK® or Keymod Palm Handguard®
  • MBA-1 Buttstock Assembly
  • Complete Lower Parts Kit

Add to your build with optional add-on parts such as a MTA™  – Modular Trigger Assembly™, or The Lower Enhanc-AR® Kit.

This Kit does not come with the lower receiver. You will have to supply a lower receiver purchased elsewhere. We recommend that you look for a Mil-Spec stripped lower.

Includes:

  • Your choice: MBA-1 Fixed Rifle Buttstock assembly
  • LRPK-1 Complete .223/5.56 Lower Receiver Parts Kit

Assembled Complete 20″ .223 Rem Fluted Bull Barrel Upper:

  • Your choice of Palm Handgund®:
    • HG-V-15M – Palm Handguard® – Vented 15″ M-LOK® with Barrel Nut
    • HG-V-15K – Palm Handguard® – Vented 15″ KeyMod with Barrel Nut
  • BL-B18FT – 20″ .223 Rem Bull Barrel, Fluted, Threaded 416 SST
  • FTT-EA1 – A3 Upper Receiver Assembled
  • BC-A-223 – Fully Assembled Bolt Carrier – .223 Rem
  • BL-04 – Rifle Length Gas Tube
  • GB-LP936 – Gas Block .936
  • BL-06-A2 — A2 Flash Hider

Upper Specs:

  • 7075-T6 Forging
  • Hardcoat 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″ .223 Rem Fluted Bull Barrel
  • .223 Rem
  • 416 SS
  • Threaded Barrel — Thread Pitch 1/2 x 28
  • Gas Block Diameter .936
  • Gas Tube Length — Rifle
  • 1-9 RH Barrel Twist
  • 6 Lands and Groves
  • M4 Feed Ramp
  • Button Broached

SKU: RKB-20-1

Additional information

Available Colors

Black

Buttstock Type

MBA-1

Application

Rifle

Caliber

.223

Slot Style

M-LOK®, KeyMod

Lands and Grooves

6

Material

4140 Chrome-Moly

Thread Pitch

1/2 x 28

Threaded

Yes

Twist

1-9

Weight lbs

10

UPC Code

812058030492

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