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BARRELED UPPER RECEIVERS UPPER RECEIVERS CHARGING HANDLES
Most items in this category will ship directly from CMMG. We've worked out special pricing with CMMG on their complete uppers, and are able to extend the savings to you.

The products that ship from CMMG will be clearly marked on the product page and you will receive another reminder when the product is added to the cart. Only these specific items ship from CMMG. Everything else is stocked right here in our warehouse and ships fast. Items that ship from CMMG may take 3-6 weeks to process

NARROW DOWN YOUR RESULTS BY CHOOSING A SUBCATEGORY
HARDWARE & SMALL PARTS GAS SYSTEM PARTS
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Phosphate Gas Block (.625) Low Profile - .625 Phosphate Gas Block (.625) Low Profile - .625
MSRP $29.95
Deal of the Day Price: $12.99
IN STOCK
(30)
Aero Precision AR15/M4 5.56 Charging Handle Aero Precision AR15/M4 5.56 Charging Handle
Our Price: $19.99
SALE PRICE: $13.95
IN STOCK
(11)
AR15 Upper Receiver Completion Kit Aero Upper Receiver Completion Kit
Our Price: $18.00
SALE PRICE: $16.99
IN STOCK
(38)
Black Nitride Mil Spec Gas Tube (Pistol) Black Nitride Mil Spec Gas Tube (Pistol)
MSRP $15.00
Deal of the Day Price: $8.99
IN STOCK
(17)
Black Nitride Gas Block Low Profile - .750 Gas Block Low Profile - .750
MSRP $29.95
SALE PRICE: $15.00
IN STOCK
(39)
Forward Assist Assembly Kit Forward Assist Assembly Kit
MSRP $12.00
SALE PRICE: $11.99
IN STOCK
(4)
Black Nitride Mil Spec Gas Tube (Carbine) Black Nitride Mil Spec Gas Tube (Carbine)
MSRP $15.00
SALE PRICE: $13.95
IN STOCK
(19)
Black Nitride Gas Block Low Profile - .875" Phosphate Gas Block Low Profile - .875"
MSRP $29.95
SALE PRICE: $15.00
IN STOCK
(1)
Anderson Manufacturing AR-15 Charging Handle Anderson Manufacturing AR-15 Charging Handle
MSRP $15.95
SALE PRICE: $12.95
IN STOCK
(18)
RCA Adjustable Gas Key RCA Adjustable Gas Key
MSRP $49.99
SALE PRICE: $39.99
IN STOCK
(1)
Black Nitride Mil Spec Gas Tube (Mid-Length) Black Nitride Mil Spec Gas Tube (Mid-Length)
MSRP $15.00
SALE PRICE: $13.95
IN STOCK
(25)
M4 Flat Top Blemished Nickel Teflon AR-15 Upper Receiver Nickel Teflon Upper Receiver (M4 Flat Top) - Complete ***BLEM***
Our Price: $179.00
SALE PRICE: $99.99
FREE SHIPPING APPLIES TO ENTIRE CART
IN STOCK
(151)
Aero Precision Stripped AR-15 Upper Receiver Aero Precision Stripped AR-15 Upper Receiver
Our Price: $79.99
Aero MAP Pricing $63.99
IN STOCK
(8)
Radical Firearms AR-15 Charging Handle Radical Firearms AR-15 Charging Handle
Our Price: $13.99
SALE PRICE: $13.99
IN STOCK
(14)
WMD NiB-X Nickel Boron Charging Handle WMD NiB-X Nickel Boron Charging Handle
Our Price: $30.00
IN STOCK
(4)
Black Nitride Gas Block Low Profile - .936" Phosphate Gas Block Low Profile - .936"
MSRP $29.95
Deal of the Day Price: $12.99
IN STOCK
(2)
CMMG Upper Receiver Assembly, Mk4, 22LR/Mk9 TACCOM 9mm / 22LR Slick Side Upper Receiver Assembly
MSRP $99.99
Deal of the Day Price: $64.95
IN STOCK
POF Rattler Ambi Charging Handle - AR15 POF Rattler Ambi Charging Handle - AR15
MSRP $75.00
Deal of the Day Price: $59.99
IN STOCK
Strike Forward Assist - Red Strike Forward Assist - Red
MSRP $18.95
SALE PRICE: $17.95
IN STOCK
SLR Rifleworks Sentry 7 Clamp Premium Adjustable Gas Block - .750 SLR Rifleworks Sentry 7 Clamp On Adjustable Gas Block - .750
MSRP $119.99
SALE PRICE: $113.99
FREE GAS TUBE + ADDITIONAL DISCOUNT
IN STOCK
(16)
   
 

AR15 Upper Receiver Replacement Parts

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.