
AR Uppers & Kits
- In StockAERO PRECISION M5 308 Win. Assembled Black AR Upper (APAR308503A)M4 Feedramps.2795 takedown pin holes (DPMS size)Lazer engraved T-marksDPMS High Profile (.210) Tang)Includes port door and forward assistAccepts standard DPMS .308 componentsMachined from 7075-T6 ...18% off$159.90$194.99
- In StockAERO PRECISION AR15 5.56mm Assembled Black AR Upper (APAR501603A)M4 Feedramps.250 takedown pin holesLaser engraved T-marksIncludes port door and forward assistMachined from 7075-T6 forged aluminumWorks with standard AR15/M16 components$111.14★★★★★15 review(s)
- In StockANDERSON MANUFACTURING AM-15 Assembled Upper Receiver (B2-K600-A000-0P)Can be used with multiple calibers on the AR-15 platformComes with the dust cover and forward assist already installedMachined from 7075 T6 Aluminum forgingM4 feed rampsComes in type III hard coat ...$89.87
- In StockANDERSON AR15 Stripped Upper Receiver (D2-K100-A000)7075 T6 Aluminum forgingMil-Spec dimensionsMarked AM-15 CAL .223 / 5.56 mmAccepts all standard AR-15 magazinesHard Coat Anodized Finish The ANDERSON AR-15 Stripped Upper Receiver is the ideal ...$62.95★★★★★23 review(s)
- In StockSPIKE'S AR15 Forged Upper (SFT50M4)Machined from a Mil-Spec 7075 T6 forgingType III Hardcoat Anodized finishEjection port door cover and forward assist come pre-installed Spike's Tactical AR 15 Forged Upper, Forward Assist and ...$103.50★★★★★3 review(s)
- In StockSPIKE'S TACTICAL Upper (5.56) 16" CHF Midlength w/ML Handguard & FSP (STU5435-MLS)7075-T6 forged aluminum upper receiver16" 5.56 NATO, cold hammer forged, Optimal profile barrel with mid-length gas systemChrome lined to M249 SAW specifications1/2x28 thread pitch with a 1:7 ...$630.00
- In StockSPIKE'S 5.56mm 16in Chrome Lined 1:7 Twist Flat Top Upper (STU5025-M4S)Spike's Tactical 16", 1:7 Twist, Mil-spec BarrelM4 Barrel Profile, Carbine Length Gas SystemF-marked A2 Front Sight Base, .750" Diameter Gas SeatSpike's Tactical Mil-spec M16 ...$738.99★★★★★1 review(s)
- In StockDANIEL DEFENSE M4A1 5.56mm 14.5in Barrel Flat Dark Earth Upper Receiver (23-004-13150)UPPER RECEIVER: Mil-Spec with Indexing Marks and M4 Feed Ramps; CNC Machined of 7075-T6 Aluminum, Type III Hard Coat AnodizedBARREL: Chrome Moly Vanadium Steel, Cold Hammer Forged, 1:7 Twist, ...0% off$1,450.00$1,455.00
- In StockAMERICAN TACTICAL IMPORTS 450 Bushmaster Upper (ATI15MS450BM)450 Bushmaster Caliber16" Black Nitride Barrel7075-T6 Forged Aluminum Upper Receiver15" Free Float Key-Mod Rail SystemLow Profile, Carbine Length Gas System (DGIS)A2 Style CompensatorBlack ...$328.66
- In StockANDERSON 5.56mm 16in Complete Upper With Front Sight Base (B2-K612-AF02)16" M4 1-8 twist barrelFront Sight BaseCarbine Gas Tube7075 T6 Forged Upper ReceiverA2 Hand GuardA2 Flash HiderStandard Charging HandleM16 BCG The ANDERSON 5.56mm 16in Complete Upper With ...$359.06
- In StockBUSHMASTER Patrolman AR-15 M4 A3 .223 Rem/5.56 NATO 16in Black Complete Upper Receiver (91822)16" M4 barrel chrome-lined in both bore and chamberDetachable carry handleA2 flash hiderBlack Finish$612.76
- In StockSPIKE'S M4 LE 5.56mm 16in 1:7 Twist Flat Top Upper with Quad Rail (STU5025-R9S)Spike's Tactical 16", 1:7 Twist, Mil-spec BarrelM4 Barrel Profile, Carbine Length Gas SystemST Micro Gas Block, .750" Diameter Gas SeatSpike's Tactical Mil-spec M16 Bolt ...$743.40
- In StockSPIKE'S TACTICAL 5.56 NATO 16in Midlength LE Upper with 12in SAR3 Rail (STU5035-S2S)5.56mm NATO (accepts .223 Remington)16 in. barrel41V50 chrome moly vanadium steel with phosphate coatingMid-length gas systemLow-profile gas block12 in. length SAR3 free float rail systemA2 Flash ...$801.80
- In StockCMMG MkG/MkGs Action Tuning Set (45AFF17)1oz weight2oz weight3.4oz weight (standard 9mm)(3) .250" x .625" roll pins Whether you want the smoothest shooting carbine possible or are looking for added reliability while shooting ...$30.32
- In StockAERO PRECISION AR15 XL Assembled Anodized Black Upper Receiver (APAR611310AC)Port door opening enlarged to enhance larger diameter brass ejection (.450 Bushmaster, .458 SOCOM, .50 Beowulf, etc.)Features Laser Marked "XL" designation on the upper receiver ...21% off$106.29$134.99
- In StockYANKEE HILL MACHINE AR-15 Stripped Billet Upper Receiver (YHM-110-BILLET)These uppers were designed and are MACHINED 100% IN HOUSEMade from 7075-T6 aluminum (Billet)M4 Style feed rampsInside coated with dry film lubeAccepts Standard upper receiver parts (dust covers, ...$162.00
- In StockMIDWEST INDUSTRIES Fits AR-15 .223 Wylde 16in MI-CRM14 M-LOK Handguard Black Upper (MI-N16CRM14-U)Forged 7075 T6 aluminum upperHard coat anodizingT-markings on receiver16 inch lightweight melonite finish barrel; 1/8 twistChambered in .223 WyldeThreaded 1/2x28.625 gas block diameter; M4 ...$578.48★★★★★3 review(s)
- In StockWILSON COMBAT BILLet-AR Anodized Upper Receiver (TR-UPPER-BIL)CNC machined from 7075-T6 aircraft grade solid billet aluminum machined to industry leading tolerancesMil-Spec Type 3 Hardcoat Anodize Black FinishHand prepped for a flawless surface ...$181.51
- In StockLBE UNLIMITED AR-15 Ejection Port Doors (AREPC)Includes matte black cover, pin and springDesigned to fit most AR-15 rifles Replacement ejection port assembly is designedd to fit most AR-15 rifles; kit includes matte black cover, pin and ...$21.41
- In StockSharps Bros. SBUR03, Billet Upper Receiver, Fits AR15, Black Finish, Includes Forward Assist and Dust Cover SBUR03Made from billet 7075-T6 aluminumMil-Spec Type III hard coat anodize'SHARPS BROS.' discretely engraved on both sides Sharps often gets asked which upper matches the best with Sharps ...23% offClearance$149.99$194.99
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.