
AR Uppers & Kits
- Out Of StockYANKEE HILL MACHINE CO Turbo Integral Suppressed 5.56 NATO 10.5in Upper Receiver Group (YHM-7125)Caliber: .5.56mm NATOConstruction: 17-4 PH SS / Cobalt 6 Blast BaffleDecibel Rating: 134 dBFull Auto RatedLength: 23.5"Weight: 3.6 lbs YHM is pleased to offer the Turbo Integrally Suppressed ...$1,199.95
- Out Of StockAERO PRECISION M4E1-T 16in 5.56mm Complete Upper Receiver (APAR700705M97)M4E1 Assembled Upper Receiver15" ATLAS R-ONE M-LOK Handguard16" 5.56 HBAR barrelProduct comes assembledThis complete upper does not include BCG or Charging Handle The AERO PRECISION ...$507.87
- Out Of StockAERO PRECISION M4E1-T 18in .223 Wylde Threaded Complete Upper Receiver (APAR700706M76)M4E1 Threaded Assembled Upper Receiver16.6" M-LOK ATLAS R-ONE Handguard of choice18" .223 Wylde Stainless Steel QPQ Barrel, Rifle LengthPinned Low Profile Gas Block and Rifle Length Gas ...$549.65
- Out Of StockAERO PRECISION M4E1-T 13.9in 5.56mm Flat Dark Earth Threaded Complete Upper Receiver (APAR700714M99)M4E1 Threaded Assembled Upper Receiver12.7" ATLAS R-ONE Handguard of choice13.9" 5.56 Mid-Length CMV BarrelLow Profile Gas Block and Pistol Length Gas TubeProduct comes assembledThis ...$526.87
- Out Of StockNOVESKE Irregular Defense Chainsaw 5.56mm 11.5in Mid-Length Gas System Tan Anodized Complete Upper (3003722)11.5" 5.56mm 416R Stainless with 1:7 twistMid length gas tubeLow profile .750" journal, pinned to barrelCGS SCI-SIX flash hider This Noveske Chainsaw Complete Upper is perfect for your ...$1,600.00
- Out Of StockNOVESKE Irregular Defense Chainsaw 5.56mm 11.5in Mid-Length Gas System Black Anodized Complete Upper (3003723)11.5" 5.56mm 416R Stainless with 1:7 twistMid length gas tubeLow profile .750" journal, pinned to barrelCGS SCI-SIX flash hider This Noveske Chainsaw Complete Upper is perfect for your ...$1,600.00
- Out Of StockSPIKE'S TACTICAL Crusader 223 Remington/556NATO Combat Gray Forged Lower/Upper Receiver Set (STS1622-PG7M).223 Remington / 5.56x45mm NATO caliber, Multi CaliberSemi-automatic actionCerakote finishCombat GrayIncludes 7" M-Lok rail If you are looking for a set to build your next rifle on, look no ...$526.50
- Out Of StockSPIKE'S TACTICAL Gadsden 223 Remington/556NATO Flat Dark Earth Lower/Upper Receiver Set (STS1634-PFD9).223 Remington / 5.56x45mm NATO caliber, Multi CaliberSemi-automatic actionCerakote finishFlat Dark EarthIncludes 9" SAR3 rail If you are looking for a set to build your next rifle on, look ...$334.99
- Out Of StockSPIKE'S TACTICAL Gadsden 223 Remington/556NATO Magpul Flat Dark Earth Lower/Upper Receiver Set (STS1634-PM9S).223 Remington / 5.56x45mm NATO caliber, Multi CaliberSemi-automatic actionCerakote finishMagpul Flat Dark EarthIncludes 9" SAR3 rail If you are looking for a set to build your next rifle ...$535.50
- Out Of StockAERO PRECISION EPC-9 Threaded Upper Receiver w/ LRBHO (APAR620201AC)Last round bolt hold open mechanismAccepts most AR15 compatible barrel nuts and handguardsDimple above threads to allow for proper handguard timingStandard AR15 takedown/pivot pin lug pattern The ...$139.39
- Out Of StockDANIEL DEFENSE M4A1 RIII 5.56mm NATO Upper Receiver Group (23-004-01097-011)14.5in Cold Hammer Forged BarrelPinned Low Profile Gas BlockGRIP-N-RIP Charging HandleFlat Dark Earth handguardMade in USA The DANIEL DEFENSE M4A1 RIII Upper Receiver Group is built around a 14.5 ...$1,450.00
- Out Of StockDANIEL DEFENSE DD4 RIII 5.56mm 16in FDE Complete Upper Receiver Group (23-191-20088-011)Upper receiver: Mil-Spec with Indexing Marks and M4 Feed RampsGas system: Pinned Low Profile Gas Block CNC Machined of 4140 Hardened Steel and Mil-Spec Heavy Phosphate Coating, Mid-length, Direct ...$1,450.00
- Out Of StockLANTAC USA SF15 Patrol 223 Wylde 14.5in Complete Upper Receiver Group (01-FA-223-PATROL-UPR)Complete Upper ReceiverFits AR-15.223 Wylde Caliber14.5" Barrel1:7 Twist RateIntermediate Gas Tube1/2x28 Muzzle Threading13.5" Spada-ML Freefloat HandguardDragon Muzzle BrakeBlack ...$1,133.99
- Out Of StockLANTAC USA SF15 Recon 223 Wylde 16in Complete Upper Receiver Group (01-FA-223-RECON-UPR)Complete Upper ReceiverFits AR-15.223 Wylde Caliber16" Barrel1:7 Twist RateRifle Length Gas Tube1/2x28 Muzzle Threading15" Spada-ML Freefloat HandguardDragon Muzzle BrakeBlack Anodized ...$1,148.99
- Out Of StockLANTAC SF15 UTP 223 Wylde 11.5in Complete Upper Receiver Group (01-FA-223-UTP-UPR)Complete Upper ReceiverFits AR-15.223 Wylde Caliber11.5" Barrel1:7 Twist RateMid-Length Gas Tube1/2x28 Muzzle Threading10.5" Spada-ML Freefloat HandguardDragon Muzzle BrakeBlack Anodized ...$1,117.99
- Out Of StockLANTAC USA SF15 Patrol 300 BLK 14.5in Complete Upper Receiver Group (01-FA-300-PATROL-UPR)Complete Upper ReceiverFits AR-15.300 AAC Blackout Caliber14.5" Barrel1:8 Twist RatePistol Length Gas Tube5/8x24 Muzzle Threading13.5" Spada-ML HandguardDragon Muzzle BrakeBlack Anodized ...$1,133.99
- Out Of StockLANTAC USA SF15 PDP 300 BLK 7.5in Complete Upper Receiver Group (01-FA-300-PDP-UPR)Complete Upper ReceiverFits AR-15.300 AAC Blackout Caliber7.5" Barrel1:8 Twist RatePistol Length Gas Tube5/8x24 Muzzle Threading6.75" Spada-ML HandguardDragon Muzzle BrakeBlack Anodized ...$1,075.99
- Out Of StockLANTAC USA SF15 UTP 300 BLK 11.5in Complete Upper Receiver Group (01-FA-300-UTP-UPR)Complete Upper ReceiverFits AR-15.300 AAC Blackout Caliber11.5" Barrel1:8 Twist RatePistol Length Gas Tube5/8x24 Muzzle Threading10.5" Spada-ML Freefloat HandguardDragon Muzzle ...$1,001.99
- Out Of StockCMMG Resolute 5.7x28mm 16.1in Armor Black Complete Upper Group For AR-15 (57B40E4-AB)Radial Delayed Blowback OperatedBillet 6061 T6 Aluminum Upper ReceiverOptics Ready Picatinny RailCMMG EML15 M-LOK Hand GuardCMMG Zeroed Muzzle BrakeCMMG Zeroed AR15 Polymer Dust CoverCMMG Zeroed ...$839.27
- Out Of StockAERO PRECISION AR15 M4E1 Enhanced Anodized Black Upper Receiver (APAR600201AC)M4 Feedramps.250 takedown pin holesLazer engraved T-marksComes assembled, with dust cover and forward assist installedHandguard mounting platform is forged into the receiverCompatible with Aero ...$149.99
If we compare parts of an AR with body parts, the upper receivers are undoubtedly the heart. As you might know, this assembly of components is indispensable for making the shooting process possible. Not that lower receivers play a minor role in that shooting play, but AR upper receivers house the components responsible for crucial steps of the firing process. Unlike lower receivers, they are not considered legal firearms and thus won’t cost you any extra paperwork. At the same time, a different upper AR receiver can turn your firearm from a close quarters carbine to a long-range precision rifle. Upper receivers are the most customizable part of ARs, so the choice is ample.
AR Uppers can be classified according to different characteristics, but the one we consider most relevant for customization enthusiasts is the degree of completeness. Some people prefer their upper complete, while others opt for stripped variants. The difference is on the surface: if an upper receiver is stripped, it includes only the main piece of metal that houses other components. A complete upper receiver will have the ejection port and the forward assist button installed. In case you don’t want to trouble yourself with gathering all the components, you can get an upper receiver assembly. It’s a complete, ready-to-be-fired system that includes a charging handle, barrel, handguards, and bolt carrier group. The only thing you’ll need to shoot is to attach it to a lower receiver.
GritrSports.com is a gun store dedicated to giving our customers the widest choice possible. Here, we have dozens of upper receivers for sale. You can find them in whatever configuration you might need, be it stripped, complete, or a whole assembly. Choose from a wide selection of products manufactured by such brands as Aero Precision, Anderson, ATI, CMMG, Daniel Defense, POF, Spikes Tactical, and many others.
Complete your AR build or make a long-awaited upgrade when you shop AR uppers at GritrSports.com.