AR-15 MK12 MOD 0 GEN III 5.56X45 NATO UPPER RECEIVER – MK12 MOD 0 SPR GEN III 5.56MM 18” BBL 1-7 TWIST UPPER FDE

Specifications

  • Cartridge: 5.56 x 45
  • Make: AR-15
  • Finish: Cerakote
  • Twist: 1-7
  • Color: Flat Dark Earth
  • Length: 18''
  • Make/Model: AR-15
  • Style: Complete

This Mark 12 Mod 0, ready to shoot 5.56 upper is equipped with a 18" Douglas 416 stainless steel barrel 1-7 or 1-8 twist with a fitted Full Auto bolt carrier, flat-top receiver, PRi flip up front gas block front sight and rear sight, rifle length gas tube, a Gas Buster charging handle with big latch, brake and collar. The system also comes with a Gen III Rifle length carbon fiber free float forearm and a full length top rail with PEQ II removable rail section. Black or Flat Dark Earth Finish.

Description

Original price was: $1,729.00.Current price is: $1,589.89.

This Mark 12 Mod 0, ready to shoot 5.56 upper is equipped with a 18" Douglas 416 stainless steel barrel 1-7 or 1-8 twist with a fitted Full Auto bolt carrier, flat-top receiver, PRi flip up front gas block front sight and rear sight, rifle length gas tube, a Gas Buster charging handle with big latch, brake and collar. The system also comes with a Gen III Rifle length carbon fiber free float forearm and a full length top rail with PEQ II removable rail section. Black or Flat Dark Earth Finish.

Out of stock

SKU 430110474 Category

Description

This Mark 12 Mod 0, ready to shoot 5.56 upper is equipped with a 18" Douglas 416 stainless steel barrel 1-7 or 1-8 twist with a fitted Full Auto bolt carrier, flat-top receiver, PRi flip up front gas block front sight and rear sight, rifle length gas tube, a Gas Buster charging handle with big latch, brake and collar. The system also comes with a Gen III Rifle length carbon fiber free float forearm and a full length top rail with PEQ II removable rail section. Black or Flat Dark Earth Finish.

Additional information

Weight 7.4 lbs
Make

AR-15

Cartridge

AKK_5.56 x 45

Finish

Cerakote

Twist

1-7

Color

Flat Dark Earth

Length

18''

Make/Model

AR-15

Style

Complete

Frequently Asked Questions

Are these brass cases and reloading components factory-new or once-fired? +

We stock both premium factory-new components and high-quality once-fired brass. Please check the specific product listing title and description carefully; once-fired brass is fully inspected, but we always recommend resizing and inspecting prior to priming and powder charging.

Will this case trimmer gauge or die set work with my progressive press setup? +

Our standard reloading dies and case length trimmer accessories utilize industry-standard threads (typically 7/8"-14) compatible with major single-stage, turret, and progressive presses like RCBS, Hornady, Lee Precision, and Dillon. Caliber-specific trim gauges must match your exact brass caliber.

Do you enforce shipping restrictions on powder, primers, or live ammunition? +

Yes. Non-hazardous reloading equipment (dies, case length trimmers, gauges, and unprimed brass) ships via standard ground carriers with no extra fees. Any orders containing smokeless powders or primers will incur standard federal HazMat handling fees and cannot be shipped via air transportation.

How can I track my shipment to ensure delivery safety? +

Precision reloading gear is valuable, so all orders are shipped with tracking enabled. As soon as your package is dispatched from our inventory warehouse, a tracking number will be emailed to you. You can monitor your shipment directly on our Track Order page using your unique Order ID.

Can I return precision measuring tools or die components if they don’t fit? +

We accept returns on unused, unaltered tools, case preparation equipment, and unopened component boxes within 30 days of item delivery. Due to safety and strict quality control on the reloading bench, we absolutely cannot accept returns on opened packs of primers, smokeless powder, or processed brass casings.