PRI AR-15 Mark 12 Mod H Upper Receiver Assembly 5.56x45mm 16″ Barrel


Category: Product ID: 18949


The PRI Mark 12 Mod H Upper Receiver Assembly is a ready to shoot 5.56 upper with MOA accuracy. The Mark 12 Mod H Upper is equipped with a 16″ Douglas 416 stainless steel barrel with a fitted bolt, and commercial bolt carrier. The Mark 12 Mod H has a flat-top picatinny receiver, PRI rail mounted flip up front and rear sights, and rifle length gas tube. It also comes with a Gas Buster charging handle with a military big latch and AE Muzzle Brake with collar. The Mark 12 Mod H comes equipped with a forearm and Reece top rail that connects to the forearm rail.


  • Forged Upper Receiver T6 7075 Hard coat anodized aluminum
  • Douglas 416 stainless steel 16″ Barrel with M4 feed ramps
  • Rifle Length Forearm with Black or FDE Finish
  • Reece Picatinny Top Rail with Flip Up Front and Rear Sights
  • 1/2″x28 Thread with AE Muzzle Brake and Collar
  • Overall Length of 25″
  • Only 5.7 Pounds
  • Product Information

    Cartridge 5.56x45mm NATO
    Finish Black/Flat Dark Earth
    Material Aluminum
    Weight 5.7 Pound
    Barrel Length 16 Inches
    Twist 1:8 Inches
    Threads 1/2″-28
    Barrel Contour Standard
    Sights Yes
    Barrel Finish Black
    Chrome Lined No
    Gas Block Diameter 0.75 Inches
    Gas System Length Rifle
    M4 Feed Ramps Yes
    Upper Receiver Type A4 Flat-Top
    Barrel Material 416 Stainless Steel
    Handguard Recce Top Rail
    Bolt Carrier Assembly Included Yes
    Muzzle Device AE Muzzle Brake
    Mil-Spec or Commercial Commercial
    Country of Origin United States of America
    Compatible With

    Delivery Information

    Shipping Weight 6.585 Pounds


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