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Ramlin M4 Flat Top Upper Receiver – Stripped Ramlin M4 Flat Top Upper Receiver - Stripped
MSRP $150.00
DEAL OF THE DAY: $65.00
IN STOCK
M4 Flat Top Upper Receiver – Stripped M4 Flat Top Upper Receiver - Stripped
MSRP $150.00
SALE PRICE: $79.95
IN STOCK
(3)
Advanced Lightweight SKELETONIZED Upper Receiver War Dog Industries WRC-15 Advanced Lightweight Upper Receiver
MSRP $149.99
DEAL OF THE DAY: $129.95
IN STOCK
(1)
Stripped AR-15 Upper Receiver - FDE Cerakote Stripped AR-15 Upper Receiver - FDE Cerakote
MSRP $99.99
DEAL OF THE DAY: $79.95
IN STOCK
(2)
RTB 9mm / 22LR True Slick Side Upper Receiver RTB 9mm / 22LR True Slick Side Upper Receiver
MSRP $150.00
SALE PRICE: $89.95
IN STOCK
Yankee Hill Flat Top Upper Receiver, Stripped Yankee Hill Flat Top Upper Receiver, Stripped
MSRP $95.50
SALE PRICE: $85.00
IN STOCK
Spikes Tactical AR15 Billet Upper Receiver- Gen II Spike's Tactical Billet Upper- Gen II (Mil Spec Barrel Nut)
MSRP $270.00
SALE PRICE: $243.00
(Out of Stock)
(23)
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
(Out of Stock)
(165)
WMD Guns NIB-X Nickel Boron upper receiver WMD Guns NIB-X Nickel Boron upper receiver
MSRP $150.00
SALE PRICE: $115.00
(Out of Stock)
(8)
BCM M4 Upper Receiver Assembly (w/ Laser T-Markings) BCM M4 Upper Receiver Assembly (w/ Laser T-Markings)
Our Price: $149.00
SALE PRICE: $129.99
(Out of Stock)
(3)
CMMG Upper Receiver Assembly, Mk4 CMMG Upper Receiver Assembly, Mk4
MSRP $129.95
SALE PRICE: $124.50
(Out of Stock)
(3)
CMMG Upper Receiver Assembly, Mk4, 22LR/Mk9 CMMG Upper Receiver Assembly 22LR/Mk9
Our Price: $139.95
SALE PRICE: $107.95
(Out of Stock)
(1)
Anderson AR-15 Upper Receiver Lightweight Sport Upper - SLICK SIDE Anderson AR-15 Upper Receiver Lightweight Upper - SLICK SIDE
Our Price: $75.00
SALE PRICE: $59.95
(Out of Stock)
(24)
   
 

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.