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  • RKB-24-1
  • RKB-24-3

Build a Complete 24″ Fluted Bull Barrel AR

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Build a Complete 24″ Fluted Bull Barrel, AR Kit. This kit contains everything you need to build your own AR except the stripped lower receiver.

The Kit Contains:

  • Fully assembled 24″ Fluted Bull Barrel Upper with 15″ Keymod Palm Handguard™
  • Your choice of either an MBA-1 Buttstock Assembly or MBA-3 Buttstock Assembly (Black)
  • Complete Lower Parts Kit
  • Complete description is listed below.

Add to your build with optional add-on parts such as a Velocity Drop-in trigger, or The Lower Enhanc-AR™ Kit.

Complete description below.

Choose from the options below, then Review Configuration and Add to the cart.

Build a Complete 24″ Fluted Bull Barrel, AR Kit. This kit contains everything you need to build your own AR except the stripped lower receiver.

The Kit Contains:

  • Fully assembled 20″ Fluted Bull Barrel Upper with 15″ Keymod Palm Handguard™
  • Your choice of either an MBA-1 Buttstock Assembly or MBA-3 Buttstock Assembly
  • Complete Lower Parts Kit

Add to your build with optional add-on parts such as a Velocity Drop-in trigger, 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 or MBA-3 Adjustable Carbine Buttstock Assembly
  • LLRPK-1 Complete .223/5.56 Lower Receiver Parts Kit

Assembled Complete 24″ Fluted Bull Barrel Upper:

  • HG-V-15K – Palm Handguard – Vented 15″ KeyMod with Barrel Nut
  • BL-B18FT – 24″ 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
  • BL-06-A2 — A2 Flash Hider

Barrel Specs:

  • 24″ 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
Shipping Weight 10 lbs
Shipping Dimensions 24 × 12 × 6 in
Application

Carbine, Rifle

Buttstock Type

MBA-1, MBA-3

Available Colors

Black

Slot Style

KeyMod

Caliber

.223

Material

416 SS

Twist

1-9

Lands and Grooves

6

Threaded

Yes

Thread Pitch

1/2 x 28

Weight lbs

10