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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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3 Pack | A2 Stripped Raw Upper Receiver

MSRP: $545.95

SALE PRICE: $267.95

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5 Pack | A2 Stripped Upper Receiver - Black

MSRP: $925.95

SALE PRICE: $459.95

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3 Pack | A2 Stripped Upper Receiver - Black

MSRP: $585.95

SALE PRICE: $278.95

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A2 Stripped Raw Upper Receiver

MSRP: $195.99

SALE PRICE: $84.96

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RTB Builders Set - 13.5" M-LOK | FDE

MSRP: $398.95

SALE PRICE: $197.95

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AR10 / .308 Upper Build Kit | Assembled Upper Receiver - DPMS Pattern + RTB M-LOK Free Float Low Profile Handguard - BLK - Choose Length

MSRP:

MSRP:

Sale Price: $134.95 - $144.95

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RTB Builders Set - 13.5" M-LOK | Multi-Cam

MSRP: $659.95

SALE PRICE: $424.95

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A2 Stripped Upper Receiver - Black

MSRP: $200.00

SALE PRICE: $95.95

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5 Pack | Standard AR15/M4 5.56 Charging Handle - 7075

MSRP: $100.00

SALE PRICE: $78.95

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3 Pack | Standard AR15/M4 5.56 Charging Handle - 7075

MSRP: $60.00

SALE PRICE: $47.35

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5 Pack | Anderson 9mm / 22LR / .45 Slick Side Upper Receiver - Black

MSRP: $500.00

SALE PRICE: $281.95

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TS Forward Assist Assembly Kit - Red

MSRP: $14.99

SALE PRICE: $8.95

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TS Forward Assist Assembly Kit - ODG

MSRP: $14.99

SALE PRICE: $8.95

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TS Low Profile .750 Steel Adjustable Gas Block

MSRP: $29.99

SALE PRICE: $16.95

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BG Builders Set - 15" M-LOK | BT Battle Worn

MSRP: $489.95

SALE PRICE: $299.95

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MAT9 Complete Upper Receiver | 9mm | Black

MSRP:

MSRP: $575.00

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XTS AR15 Ambidextrous Charging Handle - Ano Black

MSRP: $39.95

SALE PRICE: $19.95

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AERO Precision .750 Low Profile Gas Block - Nitride

MSRP:

MSRP: $39.99

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Assembled Billet DPMS Pattern DPMS Pattern .308 / AR10 Anodized Upper Receiver | Port Door | Charging Handle

MSRP: $199.99

SALE PRICE: $109.95

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BN Complete Lightweight 16" 5.56 Ambi Side Charging Upper Receiver | A2 | 15" OPT-X M-LOK | With BCG & CH

MSRP: $468.95

SALE PRICE: $298.95

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BG Complete 4.5" 9mm Upper Receiver - Black | A2 | 4" M-LOK | With BCG & CH

MSRP: $434.95

SALE PRICE: $253.95

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*BLEM* CMMG Extended ZEROED Ambi Charging Handle - AR15

MSRP: $79.95

SALE PRICE: $72.95

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BN BCG Side Charging Upper Build Kit - Ano Ambi Billet AR Upper Receiver + M16 Black Nitride BCG + Side Charging Handle

MSRP: $250.00

SALE PRICE: $158.95

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AM-15 Anodized Sport Upper Receiver - No Forward Assist Or Dust Cover

MSRP: $129.95

SALE PRICE: $50.05

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*BLEM* 2A Armament Lightweight Steel Gas Block - .750"

MSRP: $59.99

SALE PRICE: $48.95

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*BLEM* Breek Arms The WARHAMMER Mod2 AR-15 Ambidextrous Charging Handle - FDE

MSRP: $49.99

SALE PRICE: $37.95

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BG Complete 16" 5.56 Upper Receiver | A2 | 15" Quad M-LOK | With BCG & CH | FDE

MSRP: $461.95

SALE PRICE: $298.95

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BG 16" 5.56 Upper Receiver | A2 | 15" Quad M-LOK Slant Cut| Without BCG & CH | FDE

MSRP: $411.95

SALE PRICE: $216.95

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BN Complete 16" 5.56 Ambi Side Charging Upper Receiver | A2 | 15" OPT-X M-LOK | With BCG & CH

MSRP: $462.95

SALE PRICE: $288.95

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*HEAVY BLEM* M4 Flat Top Upper Receiver - Stripped

MSRP: $89.99

SALE PRICE: $42.95

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*BLEM* Black Nitride Gas Block (.625) Low Profile - .625

MSRP: $29.95

SALE PRICE: $10.95

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*BLEM* Timber Creek AR-10 Billet Dust Cover - FDE

MSRP: $35.99

SALE PRICE: $19.05

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Ambi Side Charging Billet AR Upper Receiver

MSRP:

MSRP: $80.00

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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 16" 5.56 Upper Receiver - Tungsten | A2 | 15" M-LOK | With BCG & CH

MSRP: $544.95

SALE PRICE: $343.95

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RTB Upper Build Kit 16" 5.56 Upper Receiver - Tungsten | A2 | 13.5" M-LOK | With BCG & CH

MSRP: $539.95

SALE PRICE: $347.95

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RTB Upper Build Kit 16" 5.56 Upper Receiver - Tungsten | A2 | 12" M-LOK | With BCG & CH

MSRP: $546.95

SALE PRICE: $345.95

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RTB Upper Build Kit 16" 5.56 - Sniper Gray | A2 | 15" M-LOK | With BCG & CH

MSRP: $549.95

SALE PRICE: $350.95

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RTB Upper Build Kit 16" 5.56 Upper Receiver - Sniper Gray | A2 | 13.5" M-LOK | With BCG & CH

MSRP: $544.95

SALE PRICE: $354.95

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RTB Upper Build Kit 16" 5.56 - Sniper Gray | A2 | 12" M-LOK | With BCG & CH

MSRP: $542.95

SALE PRICE: $345.95

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RTB Upper Build Kit 16" 5.56 Upper Receiver - OD Green | A2 | 12" M-LOK | With BCG & CH

MSRP: $546.95

SALE PRICE: $345.95

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RTB Upper Build Kit 16" 5.56 Upper Receiver - FDE | A2 | 13.5" M-LOK | With BCG & CH

MSRP: $523.95

SALE PRICE: $342.95

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RTB Upper Build Kit 16" 5.56 Upper Receiver - FDE | A2 | 12" M-LOK | With BCG & CH

MSRP: $546.95

SALE PRICE: $334.95

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RISE Armament Upper Parts AR-15 Kit

MSRP:

MSRP: $34.99

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RTB Upper Build Kit 16" 5.56 Upper Receiver - Black | A2 | 15" M-LOK | Mid Length | With BCG & CH

MSRP: $519.95

SALE PRICE: $320.95

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RTB Upper Build Kit 16" 5.56 Upper Receiver - Black | A2 | 13.5" M-LOK | With BCG & CH

MSRP: $523.95

SALE PRICE: $312.95

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RTB Upper Build Kit 10.5" 5.56 Upper Receiver - Tungsten | FLASH CAN | 12" M-LOK | With BCG & CH

MSRP: $534.95

SALE PRICE: $352.95

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RTB Upper Build Kit 10.5" 5.56 - Sniper Gray | FLASH CAN | 12" M-LOK | With BCG & CH

MSRP: $540.95

SALE PRICE: $359.95

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RTB Upper Build Kit 10.5" 5.56 Upper Receiver - BB | A2 | 9" M-LOK | With BCG & CH

MSRP: $525.95

SALE PRICE: $339.95

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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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BG Upper Build Kit 16" 5.56 - Black | A2 | 12" M-LOK | With BCG & CH

MSRP: $429.95

SALE PRICE: $284.95

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

MSRP: $470.95

SALE PRICE: $273.95

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RTB 10.5" 5.56 Upper Receiver - Tungsten | FLASH CAN | 12" M-LOK | Without BCG & CH

MSRP: $488.95

SALE PRICE: $310.95

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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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BG 16" 5.56 Upper Receiver | A2 | 15" Quad M-LOK Slant Cut| Without BCG & CH

MSRP: $400.95

SALE PRICE: $195.95

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BG Complete 16" 5.56 Upper Receiver | A2 | 15" Quad M-LOK | With BCG & CH

MSRP: $453.95

SALE PRICE: $277.95

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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.