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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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RTB 14.5" 5.56 Upper Receiver (16" OAL) - Black | 13.5" M-LOK | Without BCG & CH

MSRP: $455.95

SALE PRICE: $241.95

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RTB Complete 14.5" 5.56 Upper Receiver (16" OAL) - Black | 13.5" M-LOK | Mid Length | With BCG & CH

MSRP: $510.95

SALE PRICE: $333.95

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BG 14.5" 5.56 Upper Receiver (16" OAL) | 12" M-LOK | Without BCG & CH

MSRP: $381.95

SALE PRICE: $173.95

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BG Complete 14.5" 5.56 Upper Receiver (16" OAL) | 12" M-LOK | With BCG & CH

MSRP: $436.95

SALE PRICE: $252.95

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RTB Complete 8.3" 9mm Upper Receiver - BLK | A2 | 7" M-LOK HG | With BCG & CH

MSRP: $508.95

SALE PRICE: $330.95

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RTB 8.3" 9mm Upper Receiver - BLK | A2 | 7" M-LOK HG | Without BCG & CH

MSRP: $440.95

SALE PRICE: $217.95

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RTB Complete 8.3" 9mm Upper Receiver - Black | FLASH CAN | 9" M-LOK | With BCG & CH

MSRP: $517.95

SALE PRICE: $345.95

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RTB 8.3" 9mm Upper Receiver - Black | FLASH CAN | 9" M-LOK | Without BCG & CH

MSRP: $397.95

SALE PRICE: $229.95

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

MSRP: $478.95

SALE PRICE: $280.95

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

MSRP: $533.95

SALE PRICE: $372.95

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RTB 16" 5.56 Upper Receiver - Tungsten | A2 | 12" M-LOK | Without BCG & CH

MSRP: $475.95

SALE PRICE: $275.95

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RTB 8.3" 9mm Upper Receiver - Black | Fluted Comp | 9" M-LOK | Without BCG & CH

MSRP: $299.95

SALE PRICE: $249.95

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

MSRP: $179.95

SALE PRICE: $89.95

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BG Complete 16" 7.62X39 Upper Receiver - Black | A2 | 12" M-LOK | With BCG & CH

MSRP: $444.95

SALE PRICE: $264.95

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BG Builders Set - 15" M-LOK | FDE | Anderson Serial Engraving

MSRP: $312.95

SALE PRICE: $203.95

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

MSRP: $431.95

SALE PRICE: $244.95

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Magpul Industries Enhanced Ejection Port Cover - BLK

MSRP: $14.95

SALE PRICE: $14.20

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

MSRP: $45.00

SALE PRICE: $42.75

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Pistol Build Kit - BG Complete 10.5" 5.56 Upper Receiver | 9" M-LOK HG |Pistol Brace & Buffer Tube Kit | BN LPK

MSRP: $499.95

SALE PRICE: $299.95

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Pistol Build Kit - BG Complete 7.5" 5.56 Upper Receiver | 7" Slant Cut HG |Pistol Brace & Buffer Tube Kit | BN LPK

MSRP: $499.95

SALE PRICE: $299.95

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3 Pack | A2 Stripped Upper Receiver - Black

MSRP: $585.95

SALE PRICE: $278.95

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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 16" 5.56 Lightweight Upper Receiver - Black | A2 | 15" M-LOK | Without BCG & CH

MSRP: $458.95

SALE PRICE: $247.95

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RTB Complete 16" 5.56 Lightweight Upper Receiver - Black | A2 | 15" M-LOK | With BCG & CH

MSRP: $513.95

SALE PRICE: $339.95

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RTB 16" 5.56 Lightweight Upper Receiver - Black | A2 | 13.5" M-LOK | Without BCG & CH

MSRP: $458.95

SALE PRICE: $246.95

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

MSRP: $513.95

SALE PRICE: $338.95

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RTB 16" 5.56 Upper Receiver - Tungsten | A2 | 13.5" M-LOK | Without BCG & CH

MSRP: $477.95

SALE PRICE: $279.95

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WMD Guns NiB-X Forward Assist Assembly

MSRP: $25.99

SALE PRICE: $22.35

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BG 5" 5.56 1:5 Twist Upper Receiver - Black | A2 | 4.25" M-LOK + Handstop | Without BCG & CH

MSRP: $399.95

SALE PRICE: $175.95

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BG Complete 5" 5.56 1:5 Twist Upper Receiver - Black | A2 | 4.25" M-LOK + Handstop | With BCG & CH

MSRP: $449.95

SALE PRICE: $249.95

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BG 5" 5.56 1:5 Twist Upper Receiver - Black | A2 | 4" TR M-LOK | Without BCG & CH

MSRP: $378.95

SALE PRICE: $158.95

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BG Complete 5" 5.56 1:5 Twist Upper Receiver - Black | A2 | 4" TR M-LOK | With BCG & CH

MSRP: $427.95

SALE PRICE: $230.95

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BG 5" 5.56 1:5 Twist Upper Receiver - Black | A2 | 4.25" TR M-LOK | Without BCG & CH

MSRP: $378.95

SALE PRICE: $168.95

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BG Complete 5" 5.56 1:5 Twist Upper Receiver - Black | A2 | 4.25" TR M-LOK | With BCG & CH

MSRP: $427.95

SALE PRICE: $239.95

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BG Complete 5" 5.56 1:5 Twist Upper Receiver - Black | Flash Can | 4.25" M-LOK | With BCG & CH

MSRP: $435.95

SALE PRICE: $251.95

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BG Complete 5" 5.56 1:5 Twist Upper Receiver - Black | A2 | 4.25" M-LOK | With BCG & CH

MSRP: $427.95

SALE PRICE: $239.95

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Rifle Build Kit - .22LR | BG Complete 16" Upper Receiver | 15" Slant Cut M-LOK HG | MF 6-Positon Stock Kit | BN LPK

MSRP: $660.95

SALE PRICE: $404.95

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Rifle Build Kit - .22LR | BG Complete 16" Upper Receiver | 15" BX M-LOK HG |MF 6-Positon Stock Kit | BN LPK

MSRP: $660.95

SALE PRICE: $404.95

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BG Complete 16" .22LR Pencil Upper Receiver | A2 | 15" BX Series M-LOK| with BCG & CH

MSRP: $483.95

SALE PRICE: $319.95

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Rifle Build Kit - .22LR | BG Complete 16" Upper Receiver | 15" BX M-LOK HG | M4 6-Positon Stock Kit | BN LPK

MSRP: $630.95

SALE PRICE: $379.95

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Rifle Build Kit - .22LR | BG Complete 16" Upper Receiver | 15" Slant Cut M-LOK HG |M4 6-Positon Stock Kit | BN LPK

MSRP: $630.95

SALE PRICE: $379.95

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Strike Industries V1 AR Ultimate Dust Cover - FDE

MSRP: $15.95

SALE PRICE: $14.95

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BG Complete 16" .22LR Pencil Upper Receiver | A2 | 15" M-LOK Slant Cut| with BCG & CH

MSRP: $480.95

SALE PRICE: $314.95

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RTB Complete 16" .22LR Lightweight Upper Receiver - Black | A2 | 13.5" M-LOK | with BCG & CH

MSRP: $546.95

SALE PRICE: $341.95

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RTB Complete 16" .22LR Lightweight Upper Receiver - Black | A2 | 15" M-LOK | with BCG & CH

MSRP: $547.95

SALE PRICE: $342.95

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RTB 16" 5.56 Upper Receiver - FDE | A2 | 12" M-LOK | Without BCG & CH

MSRP: $469.95

SALE PRICE: $266.95

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AR10 / .308 Charging Handle AMBI/STD - Blem

MSRP: $30.00

SALE PRICE: $12.00

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Stripped AR-15 Upper Receiver - Magpul ODG

MSRP: $119.99

SALE PRICE: $79.95

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Spikes Tactical Melonited Treated Black Mil Spec Gas Tube (Pistol)

MSRP:

MSRP: $16.00

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Spike's Tactical Forward Assist Assembly Kit

MSRP: $13.65

SALE PRICE: $12.65

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UTG Low Profile Micro Gas Block, .750"

MSRP: $19.97

SALE PRICE: $18.95

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ODIN Works Low Profile Gas Block .750

MSRP:

MSRP: $35.00

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Breek Arms Sledgehammer AR-15 Gas Blocking Charging Handle

MSRP: $79.99

SALE PRICE: $69.99

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Spikes Tactical Melonited Treated Black Mil Spec Gas Tube (Rifle-Length)

MSRP:

MSRP: $16.00

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RTB Builders Set - 15" M-LOK | FDE

MSRP: $345.95

SALE PRICE: $213.95

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TACFIRE 16" .45ACP Upper Receiver - BLK | FLASH CAN| 15" M-LOK | With BCG & CH

MSRP: $492.95

SALE PRICE: $336.95

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5 Pack | A2 Stripped Raw Upper Receiver

MSRP: $885.95

SALE PRICE: $425.95

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BG 7.5" 5.56 Upper Receiver - Sniper Grey | A2 | 7" M-LOK | Without BCG & CH

MSRP: $392.95

SALE PRICE: $189.95

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BG Complete 7.5" 5.56 Upper Receiver - Sniper Grey | A2 | 7" M-LOK | With BCG & CH

MSRP: $442.95

SALE PRICE: $260.95

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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.