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Rock River Arms Predator HP A4 .308/7.62X51mm NATO Completed Upper Up to 15% Off w/ Free S&H — 2 models

Rock River Arms Completed Upper Receiver, Predator HP A4, .308/7.62X51mm NATO, 20 Inch Barrel, 1-10 Twist, Free-Float Handguard, Brake, Black, 308A0567
Rock River Arms Completed Upper Receiver, Predator HP A4, .308/7.62X51mm NATO, 16 Inch Barrel, 1-10 Twist, Free-Float Handguard, Brake, Black, 308A0578
Rock River Arms Completed Upper Receiver, Predator HP A4, .308/7.62X51mm NATO, 20 Inch Barrel, 1-10 Twist, Free-Float Handguard, Brake, Black, 308A0567
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Rock River Arms Completed Upper Receiver, Predator HP A4, .308/7.62X51mm NATO, 20 Inch Barrel, 1-10 Twist, Free-Float Handguard, Brake, Black, 308A0567
Rock River Arms Completed Upper Receiver, Predator HP A4, .308/7.62X51mm NATO, 16 Inch Barrel, 1-10 Twist, Free-Float Handguard, Brake, Black, 308A0578
2 of 2 images
Rock River Arms Completed Upper Receiver, Predator HP A4, .308/7.62X51mm NATO, 16 Inch Barrel, 1-10 Twist, Free-Float Handguard, Brake, Black, 308A0578

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ATTENTION! We currently do not ship this product to P.O. Boxes, AK, CA, CT, DE, HI, MA, NJ, NY, U.S. Territories, or select Colorado locations. Please see our policies for more information or a detailed list of locations.

Product Info for Rock River Arms Predator HP A4 .308/7.62X51mm NATO Completed Upper

Intended to be a superb item for almost any person, we're confident you will enjoy the Rock River Arms Predator HP A4 .308/7.62X51mm NATO Completed Upper.image

Formulated by using several of the most robust and long lasting resources available, these AR15 Upper Receivers via Rock River Arms provides you with a product that will give you numerous years of reliability.

Rock River Arms has been generating high quality products for a number of years, and the Rock River Arms Predator HP A4 .308/7.62X51mm NATO Completed Upper is their manner of revealing just how much they are concerned.

At OpticsPlanet, we ensure that it is our responsibility to receive the most suitable product for your preferences, and showcasing the Rock River Arms Predator HP A4 .308/7.62X51mm NATO Completed Upper is something that we're happy to offer.

WARNING: California`s Proposition 65

Specifications for Rock River Arms Predator HP A4 .308/7.62X51mm NATO Completed Upper:

Manufacturer: Rock River Arms
Caliber: 7.62x51mm NATO, .308 Winchester
Barrel Profile: Standard
Gas System Length: Mid Length
Barrel Twist Rate: 1-10
Handguard Type: Free-Float
Muzzle Device: Brake
Finish: Anadized
Color: Black
Gas Block Journal Size-Diameter: .750 in
Handguard Length: 17 in
Gun Rail: Full Top Rail
Barrel Material: 416R Stainless Steel
Bolt Carrier Group Included: COM-SPEC
Magazine Included: No
Mount Type: M-LOK

Package Contents:

  • Rock River Arms Predator HP A4 .308/7.62X51mm NATO Completed Upper
  • Bolt Carrier Group
  • Charging Handle Assembly

Rock River Arms Predator HP A4 .308/7.62X51mm NATO Completed Upper Orderable Models

List of Orderable Models

  • Rock River Arms Completed Upper Receiver, Predator HP A4, .308/7.62X51mm NATO, 20 Inch Barrel, 1-10 Twist, Free-Float Handguard, Brake, Black, 308A0567 , MPN: 308A0567 , UPC: 842834103270 , Code: 1WN-URC-UP33-308A0567
  • Rock River Arms Completed Upper Receiver, Predator HP A4, .308/7.62X51mm NATO, 16 Inch Barrel, 1-10 Twist, Free-Float Handguard, Brake, Black, 308A0578 , MPN: 308A0578 , UPC: 842834103294 , Code: 1WN-URC-UP33-308A0578
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Last updated 2026-10-04 UTC.