Skip to main content

Rock River Arms AR-15 Varmint A4 Upper Receiver Assembly 223/5.56 842834107780

Rock River Arms
Rock River Arms AR-15 Upper
Rock River Arms AR-15 Varmint A4 Upper
Rock River Arms AR-15 Varmint A4 Upper Receiver Assembly

Rock River Arms AR-15 Varmint A4 Upper Receiver Assembly 223/5.56 842834107780

Add UPC Alert

Rock River Arms AR-15 Varmint A4 Upper Receiver Assembly 223/5.56 842834107780

Rock River Arms
Rock River Arms AR-15 Upper
Rock River Arms AR-15 Varmint A4 Upper
Rock River Arms AR-15 Varmint A4 Upper Receiver Assembly

UPC
842834107780: MPN
AR0525: Brand
Rock River Arms: Main Model
Rock River Arms AR-15 Varmint A4 Upper: Model
Rock River Arms AR-15 Varmint A4 Upper Receiver Assembly: Caliber
223/5.56: Features
13" M-LOK Free-Float Handguard: Type
Upper: Finish
Black: Barrel Length
18"

No matching products found.

Store	Price	Shipping rate	Report	Show more
Out Of Stock
MidwayUSA	$655.99	Free Shipping

Recent coupons (10)

$150+ Orders Ship Free (Excl. Firearms, Ammo, Reloading, Mag. Packs & Flash Sales)

150FREESHIP

Expiration date Unknown Store Brownells Report

10% Off S&W Firearms (Excl. Apply)

SAVE10

Expiration date Unknown Store Range USA Report

10% Off Most Barrels (Excl. Apply)

BARREL0526

Expiration date Unknown Store MidwayUSA Report

12% OFF Sitewide (Excl. Apply)

JUNE1226

Expiration date Unknown Store AR15Discounts Report

Free HazMat Fee over $99

FH260601

Expiration date 2026-Jun-03 Store Natchez Shooting & Outdoors Report

10% Off Exigent Defense

EXIGENT10

Expiration date Unknown Store BattleHawk Armory Report

11% Off (+ 2% Bucks)

GETET

Expiration date 2026-Jun-05 Store Optics Planet Report

5% Off PSA Sabre Firearms

scotsman2sabre5

Expiration date 2027-May-25 Store Palmetto State Armory Report

5% Off of PSA's Sabre Line of Products

BEYOND9SABRE5

Expiration date Unknown Store Palmetto State Armory Report

15% Off Magpul Products

MAGPUL15

Expiration date Unknown Store Blackstone Shooting Sports Report

Add a Coupon

Recent comments

Burris Co FastFire E Green-Dot Reflex Sight 1x 3.5 MOA - $169.99 + Free Shipping

according to my measurements they are essentially identical in length, width, height, but the burris is 1.5 ounces heavier. I much prefer the Burris but I don't use it on pistols

1 hour 12 min ago ByBDX
Norma A-Strike 9mm 158 Grain TMJ 1000 Rounds - $338.6 w/ Code: GUNDEALS10

These are stupid quite but with my dr920 with a obsidian 9 can they don't cycle properly unfortunately and this is thr only ammo that doesn't run in that gun

1 hour 43 min ago ByBklivinfree
Bucket Hat UPF 50+ Boonie Hat Foldable for Men Women (20 colors) from - $9.01

Cheap Chinese made junk. Find yourself a real US government issue hat.

2 hours 23 min ago ByNatch
Eotech G45 5x Magnifier for All Holographic Weapon Sight - $499.99

shows up as 549 for me.

2 hours 27 min ago ByDarktidings
CZ Shadow 2 Compact PBJ Tan / Purple 9mm 4" Barrel 15-Rounds - $1596.24

Dear God, why? That is hideous.

2 hours 31 min ago ByMeatTreatforthePetite
Burris Co FastFire E Green-Dot Reflex Sight 1x 3.5 MOA - $169.99 + Free Shipping

How big is this chunky boy in comparison to a Holosun 407? It looks like a proper mailbox

3 hours 21 min ago Byzyang
50% off CVLIFE Soft Rifle Case Double Long Gun Bag,with Lockable Zipper and Backpack Strap,Rifle Backpack Rifle Bag Gun Case for Outdoor Hunting Shooting Range w/code FTWQOHKM - $33

Does not work fir any size or color

3 hours 22 min ago Bybello1077
50% off CVLIFE Soft Rifle Case Double Long Gun Bag,with Lockable Zipper and Backpack Strap,Rifle Backpack Rifle Bag Gun Case for Outdoor Hunting Shooting Range w/code FTWQOHKM - $33

Works for the 36" FDE and 42" FDE, but not the 46" in any color.

3 hours 29 min ago Bysjlplat
Remington 23728 UMC Full Metal Jacket FMJ 115 Grain 9mm Luger/Parabellum - 1000 Rd - $199.99

Sorry. My error. In my senility I overlooked your "lightweight" spring use. Those springs would certainly throw some codes and cause all sorts of experimentation. I'm still curious why the 124 Rem fails when the factory specs list identical velocities. Maybe the test barrel was longer. I'll have to chrono some. I have probably 15-20 9mm's on the rack, mostly alloy Sig and Beretta, some CZ and HK, Glock, S&W, FNH, etc., in hammer, striker and external extractor 1911 designs, use only duty weight springs, no subs or suppressors, no steel case, and don't shoot them as much anymore. They tend to be boringly reliable with major brands and reloads, with accuracy as the only variable. The Blazer was the only brand causing problems, and that out of a stiff M17. Oh, and a S&W SD9 which was such a POS that it became a test dummy.

4 hours 15 min ago Bynotsecretservice
Federal Champion BYOB Rimfire Ammunition 22 LR 36 gr. CPHP 1260 fps 1375/ct - $85.49 after code: DG5

Shipping is too high

5 hours 47 min ago ByJoshwilk18