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Anderson M4 Upper Receiver - Stripped Anderson M4 Upper Receiver - Stripped
MSRP $55.00
SALE PRICE: $44.95
IN STOCK
Anderson Anodized Upper Receiver - Stripped Anderson Anodized M4 Upper Receiver - Stripped
MSRP $55.00
Deal of the day: $39.95
IN STOCK
(21)
Anderson AR-15 Upper Receiver Lightweight Sport Upper - SLICK SIDE Anderson AR-15 Upper Receiver Lightweight Upper - SLICK SIDE
MSRP $55.00
Deal of the day: $39.95
IN STOCK
(14)
RTB 9mm / 22LR Slick Side Upper Receiver Mod 2 - Blem RTB 9mm / 22LR Slick Side Upper Receiver Mod 2 - Blem
MSRP $99.99
SALE PRICE: $59.95
IN STOCK
M4 Flat Top Upper Receiver – Stripped w/ T-Marks (Raw) M4 Flat Top Upper Receiver – Stripped (Raw)
MSRP $59.99
Deal of the day: $33.95
IN STOCK
(9)
M4 Flat Top Blemished Nickel Teflon AR-15 Upper Receiver Nickel Teflon Upper Receiver (M4 Flat Top) - Complete ***BLEM***
Our Price: $179.00
Deal of the day: $95.00
FREE SHIPPING APPLIES TO ENTIRE CART
IN STOCK
(161)
RTB 9mm / 22LR Slick Side Upper Receiver RTB 9mm / 22LR Slick Side Upper Receiver
MSRP $99.99
Deal of the day: $59.95
IN STOCK
(3)
New Frontier C-9 9mm Billet Upper w/ LRBHO New Frontier C-9 Pistol Caliber Raw Billet Upper w/ LRBHO
MSRP $135.00
Deal of the day: $89.95
IN STOCK
CMMG Upper Receiver Assembly, Mk4 CMMG Upper Receiver Assembly, Mk4
MSRP $129.95
SALE PRICE: $105.00
IN STOCK
(3)
BCM M4 Upper Receiver Assembly (w/ Laser T-Markings) BCM M4 Upper Receiver Assembly (w/ Laser T-Markings)
Our Price: $149.00
SALE PRICE: $119.00
IN STOCK
(3)
CMMG Upper Receiver Assembly, Mk4, 22LR/Mk9 CMMG Upper Receiver Assembly 22LR/Mk9
Our Price: $139.95
SALE PRICE: $115.00
IN STOCK
(1)
Yankee Hill Flat Top Upper Receiver, Stripped Yankee Hill Flat Top Upper Receiver, Stripped
MSRP $95.50
SALE PRICE: $85.00
IN STOCK
Seekins Precision Billet SP-223 Upper SP223 Seekins Precision Billet SP-223 Upper
MSRP $239.00
Deal of the day: $195.00
IN STOCK
(7)
Spikes Tactical AR15 Billet Upper Receiver- Gen II Spike's Tactical Billet Upper- Gen II (Mil Spec Barrel Nut)
MSRP $270.00
Deal of the day: $215.00
IN STOCK
(22)
Battle Arms BAD556-LW Lightweight 7075-T6 Billet Receiver Set Battle Arms BAD556-LW Lightweight 7075-T6 Billet Receiver Set
MSRP $549.00
SALE PRICE: $499.00
FREE SHIPPING APPLIES TO ENTIRE CART
IN STOCK
WMD Guns NIB-X Nickel Boron upper receiver WMD Guns NIB-X Nickel Boron upper receiver
MSRP $150.00
SALE PRICE: $89.99
(Out of Stock)
(8)
Stripped AR-15 Upper Receiver - FDE Cerakote Stripped AR-15 Upper Receiver - FDE Cerakote
MSRP $89.99
SALE PRICE: $69.95
(Out of Stock)
(1)
Aero Precision AR-15 Upper Slick Slide w/ No Forward Assist Aero Precision Assembled AR-15 Upper No Forward Assist - *Slick Side*
MSRP $95.00
SALE PRICE: $75.99
(Out of Stock)
(37)
M4 Flat Top Upper Receiver – Stripped RTB M4 Flat Top Upper Receiver – Stripped - Light Blem
MSRP $79.99
SALE PRICE: $44.95
(Out of Stock)
(2)
Battle Arms BAD556-LW Lightweight 7075-T6 Billet Upper Receiver Battle Arms BAD556-LW Lightweight 7075-T6 Billet Upper Receiver
MSRP $260.00
SALE PRICE: $239.00
FREE SHIPPING APPLIES TO ENTIRE CART
(Out of Stock)
Aero Precision Stripped AR-15 Upper Receiver Aero Precision Stripped AR-15 Upper Receiver
MSRP $79.99
SALE PRICE: $79.99
(Out of Stock)
(8)
Aero Upper + Toolcraft Phos BCG Aero Upper Receiver + Toolcraft Phosphate 158 Bolt Carrier Group
MSRP $210.00
SALE PRICE: $129.99
(Out of Stock)
Aero Upper + Toolcraft Nitride BCG Aero Upper Receiver + Toolcraft Black Nitride Bolt Carrier Group
MSRP $230.00
SALE PRICE: $149.99
(Out of Stock)
Stripped AR-15 Upper Receiver - White Cerakote Stripped AR-15 Upper Receiver - White Cerakote
MSRP $89.99
SALE PRICE: $79.95
(Out of Stock)
(1)
Aero Precision M4E1 Threaded Assembled Upper Receiver - Anodized Black Aero Precision M4E1 Threaded Assembled Upper Receiver - Anodized Black
Our Price: $124.99
SALE PRICE: $106.24
(Out of Stock)
   
 

AR Complete Upper Receivers

The most important part to consider when building any AR15 rifle is the complete upper receiver. The upper receiver assembly contains all of the essential parts of the rifle including the barrel, bolt carrier and firing pin, among others. AR uppers help you customize a rifle for any application whether it is military or civilian. For instance, an A3 upper receiver is flat-topped to accept a range of scopes for hunters along with the A4 upper receiver they both use a gas block or a standard front sight.

For the widest selection of complete upper receivers with a tight fit and no wobble, check out the options available from Right to Bear Arms and Supply. You can choose from mil-spec upper receivers which are forged uppers. In addition, we have billet upper, M4 flat-top upper, AR15 striped upper or Spikes upper. Two popular models are the Aero Precision with forward assist & ejection port door and the BCM M4 with laser T-marks.