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AR15 Upper Receiver Replacement Parts

Complete Uppers

Barreled Uppers

Upper Build Kit

UPPER RECEIVERS

CHARGING HANDLES

HARDWARE, DOORS & SMALL PARTS

GAS SYSTEM PARTS

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BG Upper Build Kit 16" 300 BLK - Black | A2 | 12" M-LOK | With BCG & CH

MSRP: $455.95

SALE PRICE: $273.95

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RTB Upper Build Kit 16" 9mm Upper Receiver - FDE | A2 | 15" M-LOK | With BCG & CH

MSRP: $531.95

SALE PRICE: $319.95

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RTB Upper Build Kit 16" 9mm Upper Receiver - Black | A2 | 15" M-LOK | With BCG & CH

MSRP: $518.95

SALE PRICE: $295.95

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RTB Upper Build Kit 10.5" 300 BLK Upper Receiver - Black | A2 | 10" M-LOK | With BCG & CH

MSRP: $510.95

SALE PRICE: $312.95

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BG Upper Build Kit 5.5" 9mm Upper Receiver - Black | FLASH CAN | 7" M-LOK | With BCG & CH

MSRP: $441.95

SALE PRICE: $232.95

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BG Upper Build Kit 4.5" 9mm Upper Receiver - Black | FLASH CAN | 4.25" M-LOK | With BCG & CH

MSRP: $426.95

SALE PRICE: $239.95

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Bully Arms BA-15 Skeletonized Upper Receiver (Black Anodized)

MSRP: $199.99

SALE PRICE: $189.95

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AR10 / .308 Assembled Upper Receiver - DPMS Pattern *Blem*

MSRP: $199.95

SALE PRICE: $79.95

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*BLEM* Yankee Hill Flat Top Upper Receiver, Stripped

MSRP: $95.50

SALE PRICE: $71.99

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BG Complete 10.5" 7.62 x 39 Upper Receiver - Black | A2 | 9" M-LOK | With BCG & CH

MSRP: $450.95

SALE PRICE: $275.95

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Vortex Razor HD Gen III 1-10x24 FFP EBR-9 MRAD with Free BG Complete 16" 5.56 Upper Receiver - Black

MSRP: $3,599.99

SALE PRICE: $2,896.95

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Upper Build Kit 16" 5.56 Carbine - Black | 15" M-LOK | With BCG & CH

MSRP: $533.95

SALE PRICE: $299.95

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Upper Build Kit 7.5" 5.56 Pistol - Black | FLASH CAN | 9.25" M-LOK | With BCG & CH

MSRP: $524.95

SALE PRICE: $313.95

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Upper Build Kit 7.5" 5.56 Pistol - Black | A2 | 7.25" M-LOK | With BCG & CH

MSRP: $514.95

SALE PRICE: $267.95

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*BLEM* Standard AR15/M4 5.56 Charging Handle

MSRP: $20.00

SALE PRICE: $5.95

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BN - Assembled Billet Upper + Handguard Set | Port Door | Slick Side

MSRP: $130.00

SALE PRICE: $94.95

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Timber Creek AR-10 Billet Dust Cover - Black

MSRP: $35.99

SALE PRICE: $28.79

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Timber Creek AR Forward Assist Assembly - OD Green

MSRP: $29.99

SALE PRICE: $23.99

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Timber Creek AR Forward Assist Assembly - FDE

MSRP: $29.99

SALE PRICE: $23.99

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Timber Creek AR Forward Assist Assembly - Black

MSRP: $29.99

SALE PRICE: $23.99

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Timber Creek Billet Dust Cover - Red

MSRP: $29.99

SALE PRICE: $23.99

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Timber Creek Billet Dust Cover - OD Green

MSRP: $29.99

SALE PRICE: $23.99

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Breek Arms WARHAMMER Mod2 308 AR / AR-10 Ambidextrous Charging Handle - FDE

MSRP: $74.99

SALE PRICE: $64.99

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Ballistic Advantage 10.3" Hanson 5.56 Upper Receiver | 9" M-LOK ATLAS R-ONE | Without BCG & CH

MSRP: $484.00

SALE PRICE: $339.95

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Aero Precision EPC-9 - Enhanced Upper Receiver w/ Last Round Bolt Hold Open - Anodized Black

MSRP:

MSRP: $199.99

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*BLEM* Seekins Precision Select Adjustable Gas Block - .750

MSRP: $119.00

SALE PRICE: $85.95

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Breek Arms The WARHAMMER Mod2 AR-15 Ambidextrous Charging Handle

MSRP: $59.99

SALE PRICE: $47.95

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DB 4.5" 9mm Barrel + 9mm Slick Side Upper Receiver Combo

MSRP: $220.00

SALE PRICE: $101.95

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BG 16" 5.56 Upper Receiver - Black | A2 | 12" M-LOK Slant Cut | Without BCG & CH

MSRP: $399.95

SALE PRICE: $194.95

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BLEM Spikes Tactical Micro Gas Block (.625) Low Profile

MSRP: $29.95

SALE PRICE: $15.95

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Aero Precision AR15 BREACH Ambi Charging Handle w/ Large Lever - Tan

MSRP:

MSRP: $79.99

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BLEM Lightweight Adjustable Gas Block - Select Size

MSRP: $59.99

SALE PRICE: $19.95

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16" 9mm Upper Receiver - FDE | A2 | 12" M-LOK Slant Cut HG | Pistol Caliber | Without BCG & CH

MSRP: $415.95

SALE PRICE: $222.95

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16" 9mm Upper Receiver - BLK + FDE | A2 | 12" M-LOK Slant Cut HG | Pistol Caliber | Without BCG & CH

MSRP: $408.95

SALE PRICE: $210.95

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16" 9mm Upper Receiver - FDE | A2 | 15" M-LOK HG | Pistol Caliber | Without BCG & CH

MSRP: $408.95

SALE PRICE: $210.95

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16" 9mm Upper Receiver - BLK + FDE | A2 | 15" M-LOK HG | Pistol Caliber | Without BCG & CH

MSRP: $401.95

SALE PRICE: $199.95

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Seekins Adjustable Gas Block - .750 + Gas Tube Promotion

MSRP: $134.95

SALE PRICE: $115.95

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AR-9 4.5" Complete Upper Receiver Build Kit - 4.25" M-LOK Handguard

MSRP: $523.88

SALE PRICE: $301.95

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Aero Precision EPC-9 Threaded Upper Receiver w/ LRBHO - Anodized Black

MSRP:

MSRP: $134.99

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Spike's Tactical Stripped Lower / Upper Set - Spider Logo - Grey

MSRP: $260.00

SALE PRICE: $234.00

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Complete 16" 5.56 Carbine Upper Receiver - FDE | 15" M-LOK | With BCG & CH

MSRP: $472.95

SALE PRICE: $315.95

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CMMG Upper Receiver Assembly Mk4 / AR15 Upper Receiver - Armor Black

MSRP:

MSRP: $149.95

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BLEM - Anderson Anodized M4 Upper Receiver - Stripped

MSRP: $59.95

SALE PRICE: $49.95

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EZ Pistol Kit - Blem Barreled 10.5" 5.56 Pistol | SB Tactical Brace | Pistol Buffer Tube Kit | Pick A Pistol Brace

MSRP: $356.95

SALE PRICE: $322.95

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10.5" 5.56 Pistol Upper Receiver - Black | FLASH CAN | 12" M-LOK Slant Cut | Without BCG & CH

MSRP: $402.95

SALE PRICE: $199.95

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BCG Upper Build Kit - Lightweight Black Nitride Bolt Carrier Group with Blemished Anodized Upper Receiver and Mil Spec Charging Handle

MSRP: $259.00

SALE PRICE: $167.95

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BCG Upper Build Kit - M16 Black Nitride Bolt Carrier Group with Blemished Anodized Upper Receiver and Mil Spec Charging Handle

MSRP: $244.00

SALE PRICE: $128.95

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M4 Flat Top BLEM Upper Receiver - with 5.56 Black Nitride Bolt Carrier Group

MSRP: $230.00

SALE PRICE: $124.95

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M4 Flat Top Upper Receiver - Stripped BLEM

MSRP: $79.95

SALE PRICE: $33.95

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RTB 9mm / 22LR True Slick Side Upper Receiver - FDE

MSRP: $179.95

SALE PRICE: $76.46

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Slick Side M4 Upper Receiver with Port Door - T marks

MSRP: $129.95

SALE PRICE: $79.95

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AO BCG Upper Build Kit - RTB M16 Black Nitride Bolt Carrier Group with Anodized Upper Receiver and Mil Spec Charging Handle

MSRP: $363.99

SALE PRICE: $144.95

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Breek Arms WARHAMMER Mod2 308 AR / AR-10 Ambidextrous Charging Handle

MSRP: $74.99

SALE PRICE: $59.95

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CMMG Extended ZEROED Ambi Charging Handle - AR15

MSRP:

MSRP: $79.95

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Bushmaster Complete M4 Patrolman's Upper - 16" Upper 5.56 NATO - Flat Top I6 | With BCG & CH

MSRP: $564.99

SALE PRICE: $540.95

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Complete 6" 300 BLK Pistol Upper Receiver - Black | FLASH CAN | 7.25" M-LOK | With BCG & CH

MSRP: $499.95

SALE PRICE: $374.95

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AR10 / .308 Stripped Upper Receiver Raw High-Profile - Armalite Pattern

MSRP: $139.99

SALE PRICE: $59.95

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AR10 / .308 Charging Handle AMBI/STD - Blem

MSRP: $30.00

SALE PRICE: $12.00

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ODIN Works AR-15 XCH Complete Extended Charging Handle - Orange

MSRP: $45.00

SALE PRICE: $42.75

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ODIN Works AR-15 XCH Complete Extended Charging Handle - Tan

MSRP: $45.00

SALE PRICE: $42.75

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We carry everything you need to upgrade your AR15 upper receiver with the best replacement parts from top brands including Spike’s Tactical, Rock River Arms, BCM and more. Our selection of mil-spec upper receiver parts and hardware includes assembly and installation kits, as well as custom ejection port dust covers. We have the most versatile ambidextrous charging handles, gas system parts including gas blocks and tubes, complete upper receivers and everything else you may need to upgrade or repair your AR15 upper receiver assembly. All of our replacement AR15 upper receiver parts are made from the most durable materials and are guaranteed to fit with no additional machining.

All of our AR15 upper receiver parts and AR15 hardware are made from steel, aluminum and other durable materials. Buy now to enjoy our everyday low prices and fast shipping on all orders or contact us for more information and our experts will help you find everything you need. We also offer a Cerakoting service for several of our popular upper receivers.