Rock River Arms Carbine A4 7.62x39mm Completed Upper |

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Rock River Arms + Gun Parts Rock River Arms Gun Parts Rock River Arms Carbine A4 7.62x39mm Completed Upper Rock River Arms + Gun Parts Rock River Arms Gun Parts + AR 15 Parts Rock River Arms AR15 Parts + AR15 Upper Receivers Rock River Arms AR15 Upper Receivers Rock River Arms Carbine A4 7.62x39mm Completed Upper Rock River Arms + Gun Parts Rock River Arms Gun Parts + Rifle Parts Rock River Arms Rifle Parts + AR 15 Parts Rock River Arms AR15 Parts + AR15 Upper Receivers Rock River Arms AR15 Upper Receivers Rock River Arms Carbine A4 7.62x39mm Completed Upper Rock River Arms + Gun Parts Rock River Arms Gun Parts + AR 15 Parts Rock River Arms AR15 Parts Rock River Arms Carbine A4 7.62x39mm Completed Upper Rock River Arms + Gun Parts Rock River Arms Gun Parts + Rifle Parts Rock River Arms Rifle Parts + AR 15 Parts Rock River Arms AR15 Parts Rock River Arms Carbine A4 7.62x39mm Completed Upper Rock River Arms + Gun Parts Rock River Arms Gun Parts + Rifle Parts Rock River Arms Rifle Parts Rock River Arms Carbine A4 7.62x39mm Completed Upper

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Image of Rock River Arms Completed Upper Receiver, Carbine A4, 7.62x39mm, 16 Inch Barrel, 1-10 Twist, 2/8-24 Thread ,Car Handguard, A2 Flash Hider, Black, 390328B

Rock River Arms Completed Upper Receiver, Carbine A4, 7.62x39mm, 16 Inch Barrel, 1-10 Twist, 2/8-24 Thread ,Car Handguard, A2 Flash Hider, Black, 390328B

Government Export Restriction

This item may be regulated for export by the U.S. Department of State or the U.S. Department of Commerce. Please see our Export Policy prior to placing your order.

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By adding to cart, I understand and agree to the Domestic Restricted Product Policy and certify that I will comply with applicable federal, state and local laws and regulations.

Questions & Answers

Product Discontinued by Manufacturer

Rock River Arms Carbine A4 7.62x39mm Completed Upper has been discontinued by Rock River Arms and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the Gun Parts, AR 15 Parts, Rifle Parts, AR15 Upper Receivers yourself to try and find the perfect replacement for you!

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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.

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Product Info for Rock River Arms Carbine A4 7.62x39mm Completed Upper

If you're looking around for an amazing bargain on the Rock River Arms Carbine A4 7.62x39mm Completed Upper, then you have showed up at the right spot..

Formulated using several of the very most heavy duty and long lasting components available, these AR15 Upper Receivers via Rock River Arms offers you a product that will give a great deal of stability.

Rock River Arms has been generating high quality merchandise for a very long time, and the Rock River Arms Carbine A4 7.62x39mm Completed Upper is their means of revealing exactly how much they care.

At OpticsPlanet, we ensure that it is our responsibility to purchase the perfect solution for your requirements, and exhibiting the Rock River Arms Carbine A4 7.62x39mm Completed Upper is a thing that we are happy to offer.

Package Contents:

Rock River Arms Carbine A4 7.62x39mm Completed Upper
Bolt Carrier Group
Charging Handle Assembly
28 Round Steel Magazine

Ammunition

1–33 / 33

PMC 762A Bronze 7.62x39mm 123 Gr Full Metal Jacket FMJ - 20 Rounds

PMC 762A Bronze 7.62x39mm 123 Gr Full Metal Jacket FMJ - 20 Rounds

List: $22.99 (Save 18%)

Hornady Frontier 7.62x39mm 123 Grain Full Metal Jacket Brass Cased Rifle Ammunition

Hornady Frontier 7.62x39mm 123 Grain Full Metal Jacket Brass Cased Rifle Ammunition

As Low As (Save Up to 12%)

$1.11 - $1.17/Round

See all 2 models

Maxim Defense Industries Short Barrel 7.62x39mm 117 grain Solid Copper Rifle Ammunition

Maxim Defense Industries Short Barrel 7.62x39mm 117 grain Solid Copper Rifle Ammunition

As Low As (Save Up to 14%)

$3.25 - $3.45/Round

See all 2 models

Sellier & Bellot 7.62x39mm 124 Grain FMJ Brass Cased Rifle Ammo, 20 Rounds, SB76239A

Sellier & Bellot 7.62x39mm 124 Grain FMJ Brass Cased Rifle Ammo, 20 Rounds, SB76239A

List: $18.09 (Save 20%)

Hornady Subsonic 7.62x39 255 Grain Sub X Brass Riffle Ammo, 20 Rounds, 80787

Hornady Subsonic 7.62x39 255 Grain Sub X Brass Riffle Ammo, 20 Rounds, 80787

List: $47.71 (Save 34%)

Red Army Standard 7.62x39mm 122 Grain Full Metal Jacket Steel Cased Rifle Ammunition, 20 Rounds, AM3420

Red Army Standard 7.62x39mm 122 Grain Full Metal Jacket Steel Cased Rifle Ammunition, 20 Rounds, AM3420

DoubleTap Ammunition Lead Free, 7.62X39, 123Gr, Solid Copper Hollow Point, 20 Round Box, CA Certified Nonlead Ammunition 739123X

DoubleTap Ammunition Lead Free, 7.62X39, 123Gr, Solid Copper Hollow Point, 20 Round Box, CA Certified Nonlead Ammunition 739123X

Hornady Black, 7.62x39mm, 111 Grain, Monoflex SBR Centerfire, Rifle Ammo, 20 Rounds, 80788-20RD

Hornady Black, 7.62x39mm, 111 Grain, Monoflex SBR Centerfire, Rifle Ammo, 20 Rounds, 80788-20RD

List: $52.39 (Save 37%)

Hornady American Gunner 7.62x39 mm 123 grain Hollow Point Brass Cased Centerfire Rifle Ammo, 50 Rounds, 80786

Hornady American Gunner 7.62x39 mm 123 grain Hollow Point Brass Cased Centerfire Rifle Ammo, 50 Rounds, 80786

List: $100.67 (Save 24%)

Nosler 7.62x39mm 123 Grain Ballistic Tip Brass Cased Centerfire Rifle Ammo, 20 Rounds, 40069

Nosler 7.62x39mm 123 Grain Ballistic Tip Brass Cased Centerfire Rifle Ammo, 20 Rounds, 40069

List: $50.95 (Save 17%)

Federal Premium Power-Shok 7.62x39 mm 123 Grain Jacketed Soft Point Rifle Ammo, 20 Rounds, 76239B

Federal Premium Power-Shok 7.62x39 mm 123 Grain Jacketed Soft Point Rifle Ammo, 20 Rounds, 76239B

List: $47.99 (Save 18%)

SUPERNOVA 7.62x39mm 110 Grain Full Metal Jacket Green/Red Tracer Rifle Ammo, 6 Rounds, PMSN762-MP

SUPERNOVA 7.62x39mm 110 Grain Full Metal Jacket Green/Red Tracer Rifle Ammo, 6 Rounds, PMSN762-MP

List: $27.99 (Save 46%)

Fort Scott Munitions, 7.62x39mm, 117 grain, Copper Solid, Brass, Centerfire Rifle Ammo, 20, 762X39-117-SCV

Fort Scott Munitions, 7.62x39mm, 117 grain, Copper Solid, Brass, Centerfire Rifle Ammo, 20, 762X39-117-SCV

List: $36.68 (Save 18%)

Supernova Red Tracer 7.62x39mm 110 Grain Full Metal Jacket Rifle Ammo, 20 Rounds, PMSN762R

Supernova Red Tracer 7.62x39mm 110 Grain Full Metal Jacket Rifle Ammo, 20 Rounds, PMSN762R

List: $61.99 (Save 22%)

Nosler 7.62x39mm 123 Grain E-Tip Boat Tail Brass Cased Centerfire Rifle Ammo, 20 Rounds, 40040

Nosler 7.62x39mm 123 Grain E-Tip Boat Tail Brass Cased Centerfire Rifle Ammo, 20 Rounds, 40040

List: $84.45 (Save 26%)

Nosler VMA 7.62x39mm 123 Grain Flat Base Tipped Varmageddon Brass Cased Centerfire Rifle Ammo, 20 Rounds, 60176

Nosler VMA 7.62x39mm 123 Grain Flat Base Tipped Varmageddon Brass Cased Centerfire Rifle Ammo, 20 Rounds, 60176

List: $35.95 (Save $2.96)

Norma Tactical 7.62x39mm 124g Grain Full Metal Jacket Brass Rifle Ammunition, 20 Rounds, 295540020

Norma Tactical 7.62x39mm 124g Grain Full Metal Jacket Brass Rifle Ammunition, 20 Rounds, 295540020

List: $19.99 (Save 28%)

MAXXTECH Tulammo 7.62x39mm 123 Grain Full Metal Jacket Rifle Ammo, 50 Rounds, MTNFR762

MAXXTECH Tulammo 7.62x39mm 123 Grain Full Metal Jacket Rifle Ammo, 50 Rounds, MTNFR762

List: $70.88 (Save 40%)

Red Army Standard BSP 7.62x39mm 122 Grain Full Metal Jacket Steel Cased Rifle Ammunition

Red Army Standard BSP 7.62x39mm 122 Grain Full Metal Jacket Steel Cased Rifle Ammunition

As Low As (Save Up to 36%)

$0.58 - $0.62/Round

See all 2 models

PPU 7.62x39mm 0 grain Brass Cased Blank Ammo, 15 Rounds, PPB739

PPU 7.62x39mm 0 grain Brass Cased Blank Ammo, 15 Rounds, PPB739

List: $19.99 (Save 25%)

Hornady BLACK 7.62x39 mm 123 grain Super Shock Tip Brass Cased Centerfire Rifle Ammo, 20 Rounds, 80784

Hornady BLACK 7.62x39 mm 123 grain Super Shock Tip Brass Cased Centerfire Rifle Ammo, 20 Rounds, 80784

List: $45.40 (Save 17%)

Century Arms Kaiser 7.62x39mm 123 Grain Full Metal Jacket Steel Cased Rifle Ammo, 20 Rounds, AM8313

Century Arms Kaiser 7.62x39mm 123 Grain Full Metal Jacket Steel Cased Rifle Ammo, 20 Rounds, AM8313

List: $17.49 (Save 26%)

Wolf Ammo Military Classic Centerfire Rifle Ammo, 7.62x39mm, 124 grain, Full Metal Jacket, BiMetal Case, 20 Rounds, MC762BFMJ-BX

Wolf Ammo Military Classic Centerfire Rifle Ammo, 7.62x39mm, 124 grain, Full Metal Jacket, BiMetal Case, 20 Rounds, MC762BFMJ-BX

List: $25.99 (Save 29%)

Belom 7.62x39mm, 123 Grain, Full Metal Jacket FMJ, Brass Cased, Non-Corrosive, Boxer Primed, Centerfire Rifle Ammo, 20 Rounds, 8606110608093

Belom 7.62x39mm, 123 Grain, Full Metal Jacket FMJ, Brass Cased, Non-Corrosive, Boxer Primed, Centerfire Rifle Ammo, 20 Rounds, 8606110608093

List: $27.99 (Save 50%)

Ppu Ammo Subsonic 7.62x39 182gr. Fmj 20-pack

Ppu Ammo Subsonic 7.62x39 182gr. Fmj 20-pack

List: $34.99 (Save 27%)

Fiocchi Range Dynamics 7.62x39mm 123 Grain FMJ Brass Rifle Ammo, 50 Rounds, 762X39A

Fiocchi Range Dynamics 7.62x39mm 123 Grain FMJ Brass Rifle Ammo, 50 Rounds, 762X39A

List: $45.99 (Save 11%)

Winchester Super-X RIFLE 7.62x39 mm 123 grain Power-Point Brass Cased Centerfire Rifle Ammo, 20 Rounds, X76239

Winchester Super-X RIFLE 7.62x39 mm 123 grain Power-Point Brass Cased Centerfire Rifle Ammo, 20 Rounds, X76239

List: $59.99 (Save 38%)

Sellier & Bellot 7.62x39 124 Grain Soft Point Rifle Ammo, 20 Rounds, SB76239B

Sellier & Bellot 7.62x39 124 Grain Soft Point Rifle Ammo, 20 Rounds, SB76239B

List: $18.09 (Save 12%)

Winchester Deer Season XP LINE EXTENSIONS 7.62x39 mm 123 grain Extreme Point Polymer Tip Centerfire Rifle Ammo, 20 Rounds, X76239DS

Winchester Deer Season XP LINE EXTENSIONS 7.62x39 mm 123 grain Extreme Point Polymer Tip Centerfire Rifle Ammo, 20 Rounds, X76239DS

List: $61.95 (Save 34%)

Supernova Green Tracer 7.62x39mm 110 Grain Full Metal Jacket Rifle Ammo, 20 Rounds, PMSN762G

Supernova Green Tracer 7.62x39mm 110 Grain Full Metal Jacket Rifle Ammo, 20 Rounds, PMSN762G

List: $61.99 (Save 15%)

Sterling 7.62x39mm 123 Grain Full Metal Jacket FMJ Steel Cased Rifle Ammo, 20 Rounds, 8698779967284

Sterling 7.62x39mm 123 Grain Full Metal Jacket FMJ Steel Cased Rifle Ammo, 20 Rounds, 8698779967284

List: $16.56 (Save $1.07)

Igman 7.62x39mm 123 Grain Full Metal Jacket Brass Cased Rifle Ammo, 15 Rounds, IG76239

Igman 7.62x39mm 123 Grain Full Metal Jacket Brass Cased Rifle Ammo, 15 Rounds, IG76239

List: $22.95 (Save 41%)

PPU TR&Z PP739P Metric Rifle Rifle Line 7.62x39mm 123 gr Pointed Soft Point PSP 20 Per Box/ 50 Cs, PP739P

PPU TR&Z PP739P Metric Rifle Rifle Line 7.62x39mm 123 gr Pointed Soft Point PSP 20 Per Box/ 50 Cs, PP739P

List: $23.00 (Save $2.01)

Ammo Boxes

1–1 / 1

Frankford Arsenal Reloading Tools Hinge-Top Ammo Box, #512, 22BR, 6.8 Rem SPC, 7.62x39 50 ct., 1083793

Frankford Arsenal Reloading Tools Hinge-Top Ammo Box, #512, 22BR, 6.8 Rem SPC, 7.62x39 50 ct., 1083793

List: $7.89 (Save 30%)

Image of Rock River Arms 9mm Luger 10.5in CL Pistol Threaded Barrel Assembly

Rock River Arms 9mm Luger 10.5in CL Pistol Threaded Barrel Assembly (6) List: $365.99 (Save 21%) $289.99 Best Rated

Image of Rock River Arms 9mm Luger 10.5in CL Pistol Threaded Barrel Assembly

Rock River Arms 9mm Luger 10.5in CL Pistol Threaded Barrel Assembly (6) List: $365.99 (Save 21%) $289.99 Best Rated

Image of Rock River Arms 9mm Luger 10.5in CL Pistol Threaded Barrel Assembly

Rock River Arms 9mm Luger 10.5in CL Pistol Threaded Barrel Assembly (6) List: $365.99 (Save 21%) $289.99 Best Rated

Rock River Arms Operator ETR .308/7.62X51mm Completed Upper List: $900.00 (Save 13%) $779.99

Rock River Arms Operator ETR .308/7.62X51mm Completed Upper List: $900.00 (Save 13%) $779.99

Rock River Arms Operator ETR .308/7.62X51mm Completed Upper List: $900.00 (Save 13%) $779.99

Rock River Arms Operator ETR .308/7.62X51mm Completed Upper List: $900.00 (Save 13%) $779.99

Image of Rock River Arms CLB .458 SOCOM Completed Upper

Rock River Arms CLB .458 SOCOM Completed Upper List: $865.00 (Save 17%) $719.99

Image of Rock River Arms CLB .458 SOCOM Completed Upper

Rock River Arms CLB .458 SOCOM Completed Upper List: $865.00 (Save 17%) $719.99

Image of Rock River Arms CLB .458 SOCOM Completed Upper

Rock River Arms CLB .458 SOCOM Completed Upper List: $865.00 (Save 17%) $719.99

Image of Rock River Arms CLB .458 SOCOM Completed Upper

Rock River Arms CLB .458 SOCOM Completed Upper List: $865.00 (Save 17%) $719.99

Image of Rock River Arms Two Stage Varmint Trigger Kit

Rock River Arms Two Stage Varmint Trigger Kit (15) List: $95.00 (Save $3.21) $91.79 Best Rated

Image of Rock River Arms Two Stage Varmint Trigger Kit

Rock River Arms Two Stage Varmint Trigger Kit (15) List: $95.00 (Save $3.21) $91.79 Best Rated

Image of Rock River Arms Two Stage Varmint Trigger Kit

Rock River Arms Two Stage Varmint Trigger Kit (15) List: $95.00 (Save $3.21) $91.79 Best Rated

Image of Rock River Arms National Match A4 Competition Trainer .22 Long Rifle Completed Upper

Rock River Arms National Match A4 Competition Trainer .22 Long Rifle Completed Upper List: $680.00 (Save $20.01) $659.99

Image of Rock River Arms National Match A4 Competition Trainer .22 Long Rifle Completed Upper

Rock River Arms National Match A4 Competition Trainer .22 Long Rifle Completed Upper List: $680.00 (Save $20.01) $659.99

Image of Rock River Arms National Match A4 Competition Trainer .22 Long Rifle Completed Upper

Rock River Arms National Match A4 Competition Trainer .22 Long Rifle Completed Upper List: $680.00 (Save $20.01) $659.99

Image of Rock River Arms National Match A4 Competition Trainer .22 Long Rifle Completed Upper

Rock River Arms National Match A4 Competition Trainer .22 Long Rifle Completed Upper List: $680.00 (Save $20.01) $659.99

Image of Rock River Arms A4 .450 Bushmaster Completed Upper

2 models Rock River Arms A4 .450 Bushmaster Completed Upper (5) As Low As (Save Up to 11%) $606.49 14% Coupon

Image of Rock River Arms A4 .450 Bushmaster Completed Upper

2 models Rock River Arms A4 .450 Bushmaster Completed Upper (5) As Low As (Save Up to 11%) $606.49 14% Coupon

Image of Rock River Arms A4 .450 Bushmaster Completed Upper

2 models Rock River Arms A4 .450 Bushmaster Completed Upper (5) As Low As (Save Up to 11%) $606.49 14% Coupon

Image of Rock River Arms A4 .450 Bushmaster Completed Upper

2 models Rock River Arms A4 .450 Bushmaster Completed Upper (5) As Low As (Save Up to 11%) $606.49 14% Coupon

Image of Rock River Arms 5.56x45mm NATO 10.5in CL Threaded Full Auto Barrel Assembly

Rock River Arms 5.56x45mm NATO 10.5in CL Threaded Full Auto Barrel Assembly (2) List: $359.99 (Save 22%) $279.99

Image of Rock River Arms 5.56x45mm NATO 10.5in CL Threaded Full Auto Barrel Assembly

Rock River Arms 5.56x45mm NATO 10.5in CL Threaded Full Auto Barrel Assembly (2) List: $359.99 (Save 22%) $279.99

Rock River Arms Carbine A4 7.62x39mm Completed Upper Unavailable & Discontinued Models

List of Unorderable Models

Rock River Arms Completed Upper Receiver, Carbine A4, 7.62x39mm, 16 Inch Barrel, 1-10 Twist, 2/8-24 Thread ,Car Handguard, A2 Flash Hider, Black, 390328B , MPN: 390328B , UPC: 842834103515 , Code: 1WN-URC-UP07-390328B

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Rock River Arms + Gun Parts Rock River Arms Gun Parts Rock River Arms Carbine A4 7.62x39mm Completed Upper Rock River Arms + Gun Parts Rock River Arms Gun Parts + AR 15 Parts Rock River Arms AR15 Parts + AR15 Upper Receivers Rock River Arms AR15 Upper Receivers Rock River Arms Carbine A4 7.62x39mm Completed Upper Rock River Arms + Gun Parts Rock River Arms Gun Parts + Rifle Parts Rock River Arms Rifle Parts + AR 15 Parts Rock River Arms AR15 Parts + AR15 Upper Receivers Rock River Arms AR15 Upper Receivers Rock River Arms Carbine A4 7.62x39mm Completed Upper Rock River Arms + Gun Parts Rock River Arms Gun Parts + AR 15 Parts Rock River Arms AR15 Parts Rock River Arms Carbine A4 7.62x39mm Completed Upper Rock River Arms + Gun Parts Rock River Arms Gun Parts + Rifle Parts Rock River Arms Rifle Parts + AR 15 Parts Rock River Arms AR15 Parts Rock River Arms Carbine A4 7.62x39mm Completed Upper Rock River Arms + Gun Parts Rock River Arms Gun Parts + Rifle Parts Rock River Arms Rifle Parts Rock River Arms Carbine A4 7.62x39mm Completed Upper

Last updated 2026-07-05 UTC.