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Complete Upper Receiver

Best Sellers
  1. Complete Upper Receiver 16" - Complete Upper Receiver 14.5"
    Item#:
    160-000-392  
    Our Price:
    $740.00
    Description:
    Add the Colt legend of reliability to you rifle or build with these complete upper receivers from Colt. These are the same upper receivers that can be found on the LE6920, LE6920 SOCOM, and LE6940 model rifles. The LE6920CK and LE6921CK are based off the combat proven M4 upper receiver and features 1/7 RH twist in a 16.1” barrel on the LE6920CK and 14.5” barrel in the LE6921CK. The LE6920SCMCK is based off the LE6920 SOCOM and has the same features as the LE6920CK but includes a heavy barrel and Troy quad rail. The LE6940CK and LE6944CK feature a one-piece monolithic upper receiver that has a continuous Mil-Spec rail from the rear of the upper receiver to the front sight and a Mfg: Colt
  2. Complete Upper Receiver 16"
    Item#:
    160-000-388  
    Our Price:
    $740.00
    Description:
    Add the Colt legend of reliability to you rifle or build with these complete upper receivers from Colt. These are the same upper receivers that can be found on the LE6920, LE6920 SOCOM, and LE6940 model rifles. The LE6920CK and LE6921CK are based off the combat proven M4 upper receiver and features 1/7 RH twist in a 16.1” barrel on the LE6920CK and 14.5” barrel in the LE6921CK. The LE6920SCMCK is based off the LE6920 SOCOM and has the same features as the LE6920CK but includes a heavy barrel and Troy quad rail. The LE6940CK and LE6944CK feature a one-piece monolithic upper receiver that has a continuous Mil-Spec rail from the rear of the upper receiver to the front sight and a Mfg: Colt
  3. Complete Upper Receiver 16" - Socom Upper Receiver
    Item#:
    160-000-389  
    Our Price:
    $859.99
    Description:
    Add the Colt legend of reliability to you rifle or build with these complete upper receivers from Colt. These are the same upper receivers that can be found on the LE6920, LE6920 SOCOM, and LE6940 model rifles. The LE6920CK and LE6921CK are based off the combat proven M4 upper receiver and features 1/7 RH twist in a 16.1” barrel on the LE6920CK and 14.5” barrel in the LE6921CK. The LE6920SCMCK is based off the LE6920 SOCOM and has the same features as the LE6920CK but includes a heavy barrel and Troy quad rail. The LE6940CK and LE6944CK feature a one-piece monolithic upper receiver that has a continuous Mil-Spec rail from the rear of the upper receiver to the front sight and a Mfg: Colt
  4. Ar15/M16 Complete Upper Receiver - Ar15/M16 Upper Receiver Mid-Length 16" 223 Wylde
    Item#:
    100-011-666  
    Our Price:
    $998.99
    Description:
    Drop-In Ready, Mid-Length Flattop Upper With Versatile .223 Wylde Chamber
  5. Ar-15/M16 Complete Upper Receiver Groups - Ar15/M16 Mk18 10.3" Upper Receiver 5.56 1-7 Govt
    Item#:
    100-014-992  
    Our Price:
    $1,149.00
    Description:
    Ready To Install On Your Complete Lower
  6. Ar-15/M16 Complete Upper Receiver Groups - Ar15/M16 Ddm4v5 16" Upper Receiver 5.56 1-7 Govt
    Item#:
    100-014-991  
    Our Price:
    $1,079.00
    Description:
    Ready To Install On Your Complete Lower

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Gas Piston Upper Receiver

Related Items
  1. Ar-15/M16 5.56 16" Basic Piston Upper Receivers - Gas Piston Upper Receiver, Midlength
    Item#:
    100-009-248  
    Our Price:
    $550.99
    Description:
    Ready To Install To Make A Reliable, Clean Running Piston Rifle
  2. Ar-15/M16 5.56 16" Basic Piston Upper Receivers - Gas Piston Upper Receiver, Carbine
    Item#:
    100-005-989  
    Our Price:
    $529.99
    Description:
    Ready To Install To Make A Reliable, Clean Running Piston Rifle
  3. Ar-15/M16 Tactical Elite Piston Upper Receivers - Gas Piston Upper Receiver, Pistol
    Item#:
    100-005-990  
    Our Price:
    $735.00
    Description:
    Ready To Install To Make A Reliable, Clean Running Piston Carbine Or Pistol
  4. Ar-15/M16 Tactical Elite Piston Upper Receivers - Gas Piston Upper Receiver Tac Elite, Mid-Length
    Item#:
    100-013-536  
    Our Price:
    $719.99
    Description:
    Ready To Install To Make A Reliable, Clean Running Piston Carbine Or Pistol
  5. Ar-15/M16 Tactical Elite Piston Upper Receivers - Gas Piston Upper Receiver, Pistol Extended Rail
    Item#:
    100-005-991  
    Our Price:
    $699.60
    Description:
    Ready To Install To Make A Reliable, Clean Running Piston Carbine Or Pistol
  6.  

Rifle Ammo
  1. Match Rifle Ammo - Match Ammo .223 Rem 77gr Matchking Hpbt 200/Case
    Item#:
    105-000-511  
    Our Price:
    $229.99
    Description:
    Loaded with Sierra MatchKing HPBT's, Norma MATCH-223 & MATCH-308 offers accurate, flat shooting trajectory with the quality and precision Norma is known for. Mfg: Norma
  2. Tac Rifle Ammo Cans - Tac-308 .308 Win 150gr Fmj 200 Round Ammo Can
    Item#:
    105-000-514  
    Our Price:
    $209.99
    Description:
    Bulk Norma TAC-223 and TAC-308 ammunition now with an MTM .50 Cal Ammo can. Great for long term storage of ammunition or for easy carrying to the range. Mfg: Norma
  3. Match Rifle Ammo - Match Ammo .223 Rem 77gr Matchking Hpbt 20/Box
    Item#:
    105-000-510  
    Our Price:
    $23.99
    Description:
    Loaded with Sierra MatchKing HPBT's, Norma MATCH-223 & MATCH-308 offers accurate, flat shooting trajectory with the quality and precision Norma is known for. Mfg: Norma
  4. Match Rifle Ammo - Match Ammo .308 Win 168gr Matchking Hpbt 200/Case
    Item#:
    105-000-509  
    Our Price:
    $229.99
    List Price: $279.99
    Description:
    Loaded with Sierra MatchKing HPBT's, Norma MATCH-223 & MATCH-308 offers accurate, flat shooting trajectory with the quality and precision Norma is known for. Mfg: Norma
  5. Match Rifle Ammo - Match Ammo .308 Win 168gr Matchking Hpbt 20/Box
    Item#:
    105-000-508  
    Our Price:
    $29.99
    Description:
    Loaded with Sierra MatchKing HPBT's, Norma MATCH-223 & MATCH-308 offers accurate, flat shooting trajectory with the quality and precision Norma is known for. Mfg: Norma
  6. Tac Rifle Ammo - Tac Ammo .308 Win 150gr Fmj 500/Case
    Item#:
    105-000-507  
    Our Price:
    $498.99
    Description:
    Loaded with FMJ boat tails, Norma TAC-223 & TAC-308 offers accurate, flat shooting trajectory with the quality and precision Norma is known for. Mfg: Norma

View All Rifle Ammo »

So, you're looking for Complete Upper Receiver? Brownells.com has the best selection and pricing around. We've got 14 Complete Upper Receiver and Gas Piston Upper Receiver, from $514.95 to $1,149.99, meaning your search is over. As the internet's top seller of gun parts and gunsmith tools, we're able to bring you the best products, excellent prices, and reliable customer service every day. We love the products we sell, and we know you will, too. We provide a 100% satisfaction guarantee with all of our products, so if you're not satisfied with your Complete Upper Receiver for any reason, let us know right away. Shop our inventory of Complete Upper Receiver and place your order on the web or over the phone. We're here to provide you with all the gun parts and gunsmith tools and information you need, so - if you don't find what you're looking for online - give us a call!