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Ar 15 Upper

Best Sellers
  1. Ar-15 9mm Upper Receiver Assembly - A2 9mm Upper Receiver
    Item#:
    739-000-012  
    Our Price:
    $529.99
    Description:
    Easily Convert Your .223 AR Into A Fast-Shooting 9mm
  2. Sr-15 E3 Mod 2 Upper Receivers M-Lok - Ar-15 Upper Receiver Mod 2 16" Urx 4 M-Lok
    Item#:
    100-023-388  
    Our Price:
    $1,700.00
    Description:
    Knight’s Armament Company, or KAC, is known to many for their top tier, military issued rifles and parts. Brownells is proud to offer this line of Knight’s Armament SR-15 MOD 2 complete upper receivers that allow you to easily complete a build or upgrade a rifle with battle proven quality. Built around a chrome lined, cold hammer forged barrel in your choice of 11.5”, 14.5” 16” & 18” lengths with a Mod 2 gas block, and fitted with a KAC 3 prong QDC suppressor compatible flash hider. The Knight’s Armament SR-15 MOD 2 complete upper receivers feature the URX M-LOK handguards that each have 2 anti-rotation QD sling swivel sockets and ev Mfg: Knights Armament
  3. Sr-15 E3 Mod 2 Upper Receivers M-Lok - Ar-15 Upper Receiver Cqb Mod 2 11.5" Urx 4 M-Lok
    Item#:
    100-023-386  
    Our Price:
    $1,762.50
    Description:
    Knight’s Armament Company, or KAC, is known to many for their top tier, military issued rifles and parts. Brownells is proud to offer this line of Knight’s Armament SR-15 MOD 2 complete upper receivers that allow you to easily complete a build or upgrade a rifle with battle proven quality. Built around a chrome lined, cold hammer forged barrel in your choice of 11.5”, 14.5” 16” & 18” lengths with a Mod 2 gas block, and fitted with a KAC 3 prong QDC suppressor compatible flash hider. The Knight’s Armament SR-15 MOD 2 complete upper receivers feature the URX M-LOK handguards that each have 2 anti-rotation QD sling swivel sockets and ev Mfg: Knights Armament
  4. Sr-15 E3 Mod 2 Upper Receivers M-Lok - Ar-15 Upper Receiver Lpr Mod 2 18" Urx 4 M-Lok
    Item#:
    100-023-389  
    Our Price:
    $1,950.56
    Description:
    Knight’s Armament Company, or KAC, is known to many for their top tier, military issued rifles and parts. Brownells is proud to offer this line of Knight’s Armament SR-15 MOD 2 complete upper receivers that allow you to easily complete a build or upgrade a rifle with battle proven quality. Built around a chrome lined, cold hammer forged barrel in your choice of 11.5”, 14.5” 16” & 18” lengths with a Mod 2 gas block, and fitted with a KAC 3 prong QDC suppressor compatible flash hider. The Knight’s Armament SR-15 MOD 2 complete upper receivers feature the URX M-LOK handguards that each have 2 anti-rotation QD sling swivel sockets and ev Mfg: Knights Armament
  5. Ar-15 Stripped Ds4 Upper - Ar-15 16" Ds-4 Upper W/ Lpgb - No Barrel Nut
    Item#:
    100-017-657  
    Our Price:
    $269.99
    Description:
    Double Star Upper with 16” DS-4 Barrel, ready to be your next build’s foundation.  DS-4 barrel features a 1-9 twist, M4 feedramps and a matte black, phosphate finish.  Barrel is chambered in 5.56x45mm NATO, and does not have chrome lining. Flat top upper receiver is ready for the attachment of Picatinny accessories and barrel.  Carbine gas tube and barrel assembly are ready for your choice of handguard and muzzle device. Low profile gas block installs onto the barrels .750” OD gas shoulder. Mfg: Double Star
  6. Ar-15 Stripped A2 Upper Receiver - Stripped A2 Upper Receiver
    Item#:
    231-000-152  
    Our Price:
    $99.99
    Description:
    Fully machined and finished, military style uppers ready for you to install your choice of barrel, carrier, bolt, forearm, and lower to build a custom AR-15. A2 carry handle style, complete with cuts for mounting A2 rear sight. Features shell deflector, forward assist housing, and provisions for installing an ejection port cover. Precision machined from a premium-grade aluminum forging and hardcoat anodized for extra strength, with a tough, scratch-resistant Teflon coating. Does Not feature M4 Style Cuts. Mfg: Dpms SPECS: Aluminum, hard anodized, Teflon coated, matte black. Fits mil-spec AR-15 lower receiver with .250” pivot pins. Does Not feature M4 Style Cuts.

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Ar 15 Left Hand Upper Receiver

Related Items
  1. Ar-15 Flattop Upper Receiver - Stripped Flattop Upper Receiver
    Item#:
    274-000-019  
    Our Price:
    $60.99
    Description:
    M4/A3-style upper receiver is available stripped. Precision machined from a 7075 T6 aluminum alloy forging to USGI dimensions, and ready to mate with the mil-spec lower and internal components of your choice. Includes M4-type feed cuts and alphanumeric position markers stamped into the rail slots. Hardcoat anodized to resist wear, add strength, and protect from corrosion. Hard dry-lube surface treatment protects the anodizing from scuffs and reduces friction between bolt carrier and receiver walls for ultra-smooth operation, less wear, and longer service life. Mfg: D.S. Arms SPECS: 7075 T6 aluminum, hardcoat anodized, dry-lube finish, matte black. .250” takedown/pivot pin holes.
  2. Ar-15 Upper Receiver Assembly No Bcg - Ar-15 Upper Receiver Assembly No Bcg High Gas Block
    Item#:
    100-019-905  
    Our Price:
    $229.00
    Description:
    Complete AR-15 Upper Receiver Assembly less Bolt Carrier Group & Charging Handle.  Included Picatinny Gas Block is the same height as the receiver, to allow for use of back up iron sights.  Upper features an A2 flash hider, attached to a 16" M4 profile barrel with a 1-8 twist.  Barrel chambered in 5.56x45mm NATO features M4 feed ramps, 1/2-28 muzzle threads and a .750" diameter gas block journal.  Carbine length gas system allows for reliable function, and compatibility with a wide variety of aftermarket handguards & forends.  Included polymer handguards include a heat shield.  Forged aluminum 7075 T6 upper receiver includes ejection port co Mfg: Anderson Manufacturing
  3. Ar-15 14.5 Complete Upper Receiver - Complete Upper Receiver 14.5"
    Item#:
    160-000-393  
    Our Price:
    $959.99
    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. LE6944CK features 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 free floating barrel. LE6944CK has a 14.5” barrel. Includes a charging handle, bolt carrier group, and back up sights. All NFA rules apply. Mfg: Colt
  4. A4 9mm 10.5" Upper Receiver - 9mm 10.5 Inch A4 Upper Receiver
    Item#:
    739-000-022  
    Our Price:
    $630.00
    Description:
  5. Ar-15 M4e1 Enhanced Upper Receiver - M4e1 Enhanced Upper Receiver
    Item#:
    100-015-499  
    Our Price:
    $149.00
    Description:
    Aero Precision’s M4E1 Enhanced Upper Receiver is a new take on the way the handguard attaches to the upper receiver on AR-15/M16 platforms. The upper receiver is made from forged 7075 T6 aluminum with the handguard mounting platform forged as an integral part of the receiver.  The receiver also features M4 feed ramps, laser engraved T-marks, hard coat anodizing, accepts standard AR-15/M16 components, and includes the barrel nut and wrench. Mfg: Aero Precision SPECS: Material: Forged 7075 T6 Aluminum with hard coat anodized finish.
  6. Ar-15 Stripped Upper Receiver - Stripped Upper Receiver
    Item#:
    100-010-543  
    Our Price:
    $98.50
    Description:
    YHM machines these receivers to precise final specifications from 7075 aluminum forgings to produce a tough, high-quality upper you can depend on. Features include M4-pattern feed cuts for reliable feeding, engraved “T” marks on the rail for precise optic positioning, and a military-style, hard-anodized finish that will stand up to rough use. Fits standard AR-15 and M16 lower receivers, and accepts any mil-spec barrels, handguards, and other components. Mfg: Yankee Hill Machine Co., Inc. SPECS: 7075 T6 aluminum, hardcoat anodized matte black. Stripped receiver only; no parts included. Accepts .250 dia.” takedown and pivot pins.

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Ammunition
  1. 9mm Luger 115gr Extra Power Hollow Point Ammo - 9mm Luger 115gr Extra Power Hp 500/Case
    Item#:
    105-001-339  
    Our Price:
    $336.88
    Description:
    Factory New 9mm Luger 115gr Extra Power Hollow Point Pistol Ammunition. Black Hills focus is on handcrafting ammunition for serious folks who demand it works every time without fail. No magic loads. No gimmickry. Instead, they stake their reputation on dependability, accuracy, and performance. That’s why Black Hills defensive and training ammunition is counted among the finest in the world.  Mfg: Black Hills Ammunition
  2. 9mm Luger 115gr Extra Power Hollow Point Ammo - 9mm Luger 115gr Extra Power Hp 20/Box
    Item#:
    105-001-338  
    Our Price:
    $13.80
    Description:
    Factory New 9mm Luger 115gr Extra Power Hollow Point Pistol Ammunition. Black Hills focus is on handcrafting ammunition for serious folks who demand it works every time without fail. No magic loads. No gimmickry. Instead, they stake their reputation on dependability, accuracy, and performance. That’s why Black Hills defensive and training ammunition is counted among the finest in the world.  Mfg: Black Hills Ammunition
  3. 9mm Luger 115gr Full Metal Jacket Ammo - 9mm Luger 115gr Fmj 500/Case
    Item#:
    105-001-337  
    Our Price:
    $286.88
    Description:
    Factory New 9mm Luger 115gr Full Metal Jacket Pistol Ammunition. Black Hills focus is on handcrafting ammunition for serious folks who demand it works every time without fail. No magic loads. No gimmickry. Instead, they stake their reputation on dependability, accuracy, and performance. That’s why Black Hills defensive and training ammunition is counted among the finest in the world.  Mfg: Black Hills Ammunition
  4. 45 Acp +p 230gr Jacketed Hollow Point Ammo - 45 Acp +p 230gr Jhp 20/Box
    Item#:
    105-001-382  
    Our Price:
    $18.15
    Description:
    Factory New 45 ACP +P 230gr Jacketed Hollow Point Pistol Ammunition. Black Hills focus is on handcrafting ammunition for serious folks who demand it works every time without fail. No magic loads. No gimmickry. Instead, they stake their reputation on dependability, accuracy, and performance. That’s why Black Hills defensive and training ammunition is counted among the finest in the world.  Mfg: Black Hills Ammunition
  5. 45 Acp +p 185gr Tac-Xp Ammo - 45 Acp +p 185gr Tac-Xp 20/Box
    Item#:
    105-001-384  
    Our Price:
    $26.85
    Description:
    Factory New 45 ACP +P 185gr TAC-XP Pistol Ammunition. Black Hills focus is on handcrafting ammunition for serious folks who demand it works every time without fail. No magic loads. No gimmickry. Instead, they stake their reputation on dependability, accuracy, and performance. That’s why Black Hills defensive and training ammunition is counted among the finest in the world.  Mfg: Black Hills Ammunition
  6. 45 Acp 135gr Honeybadger  Ammo - 45 Acp 135gr Honeybadger 20/Box
    Item#:
    105-001-386  
    Our Price:
    $27.62
    Description:
    Factory New 45 ACP 135gr HoneyBadger Pistol Ammunition. HoneyBadger is Black Hills new line of ammunition that does not have hollow point. HoneyBadger doesn't need hollow points and does not depend on them for performance. The copper projectile is near barrier blind and its optimized nose flutes; mixed with total weight and velocity, create devastating permanent wound cavities. Mfg: Black Hills Ammunition

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Price shopping for Ar 15 Upper? Look no further than Brownells.com for the best prices and selection. Here you'll find 152 Ar 15 Upper and Ar 15 Left Hand Upper Receiver, the best selection online, ranging in price from $2.99 to $4,195.00. 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're so confident in our selection of Ar 15 Upper, we make you a promise. Our 100% satisfaction guarantee means if you're not completely happy with your purchase, we'll do everything we can to make it right. So check out our complete selection of Ar 15 Upper and place your order online or by calling us toll free at 1-800-741-0015. Customer service associates are standing by to answer your questions about our gun parts and gunsmith tools. We're here to help!