• Become a Dealer
  • Account
  • Login
  • Become a Dealer
  • Account
  • Login
×
$0.00 0 Cart
  • Ammo
    • Pistol Ammo
    • Rifle Ammo
    • Shotgun Shells
    • Brass
    • Ammo Cans
  • Build Kits
    • Pistols
    • Rifles
  • Ammo Deals
  • Pistol
    • Pistol Accessories
    • Pistol Lower Parts
    • Pistol Magazines
    • Pistol Upper Parts
    • Pistol Barrels
    • Pistol Slides
  • CAA Micro Conversion Kits
    • CAA Micro Conversion Kits – Glock
    • CAA Micro Conversion Kits – Polymer80
    • CAA Micro Conversion Kits – Taurus
  • Cerakote
    • Cerakoted 80% Lower
    • Cerakoted Handguards
    • Cerakoted Upper Receiver
  • Upper Parts
    • Barrels
    • Bolt Carrier Groups
    • Charging Handles
    • Complete Upper Assemblies
    • Upper Receivers
    • Dust Covers | Forward Assists
    • Gas Blocks | Gas Tubes
    • Handguards
    • Muzzle Devices
      • .223/5.56
      • .300/.308/7.62
      • .450/.458/.50
      • 9MM
      • Thread Protector
      • Adaptor
      • Crush Washers
  • Lower Parts
    • 80% Lower Receivers
    • Lower Parts Components
    • Lower Parts Kits
    • Pistol Braces
    • Stocks and Buffer Kits
    • Triggers
  • Accessories
    • AR Tools and Cleaning
    • Bipods
    • Grips
    • Magazines
      • 5.56 / 2.23
      • 9MM
      • Laser Engraved
      • Speciality Calibers
    • Misc Accessories
    • Mounts
    • Rail Accessories
    • Optics
    • Scope Rings
    • Slings
    • Sights
    • Bore Sight
  • TekMat
    • Handgun
    • Military
    • Miscellaneous
    • Rifle
  • Equipment & Gear
    • Safety Gear
    • First Aid
    • Survival
    • Bags | Packs
    • Holsters
    • Tactical Vest
    • Knives
    • Can and Golfball Launchers
    • Flame Throwers
    • Tannerite
    • Apparel
  • Specials
    • Clearance
    • Gift Packages
    • New Items
  • Contact Us
  • Ammo
    • Pistol Ammo
    • Rifle Ammo
    • Shotgun Shells
    • Brass
    • Ammo Cans
  • Build Kits
    • Pistols
    • Rifles
  • Ammo Deals
  • Pistol
    • Pistol Accessories
    • Pistol Lower Parts
    • Pistol Magazines
    • Pistol Upper Parts
    • Pistol Barrels
    • Pistol Slides
  • CAA Micro Conversion Kits
    • CAA Micro Conversion Kits – Glock
    • CAA Micro Conversion Kits – Polymer80
    • CAA Micro Conversion Kits – Taurus
  • Cerakote
    • Cerakoted 80% Lower
    • Cerakoted Handguards
    • Cerakoted Upper Receiver
  • Upper Parts
    • Barrels
    • Bolt Carrier Groups
    • Charging Handles
    • Complete Upper Assemblies
    • Upper Receivers
    • Dust Covers | Forward Assists
    • Gas Blocks | Gas Tubes
    • Handguards
    • Muzzle Devices
      • .223/5.56
      • .300/.308/7.62
      • .450/.458/.50
      • 9MM
      • Thread Protector
      • Adaptor
      • Crush Washers
  • Lower Parts
    • 80% Lower Receivers
    • Lower Parts Components
    • Lower Parts Kits
    • Pistol Braces
    • Stocks and Buffer Kits
    • Triggers
  • Accessories
    • AR Tools and Cleaning
    • Bipods
    • Grips
    • Magazines
      • 5.56 / 2.23
      • 9MM
      • Laser Engraved
      • Speciality Calibers
    • Misc Accessories
    • Mounts
    • Rail Accessories
    • Optics
    • Scope Rings
    • Slings
    • Sights
    • Bore Sight
  • TekMat
    • Handgun
    • Military
    • Miscellaneous
    • Rifle
  • Equipment & Gear
    • Safety Gear
    • First Aid
    • Survival
    • Bags | Packs
    • Holsters
    • Tactical Vest
    • Knives
    • Can and Golfball Launchers
    • Flame Throwers
    • Tannerite
    • Apparel
  • Specials
    • Clearance
    • Gift Packages
    • New Items
  • Contact Us
  • Ammo
    • Pistol Ammo
    • Rifle Ammo
    • Shotgun Shells
    • Brass
    • Ammo Cans
  • Build Kits
    • Pistols
    • Rifles
  • Ammo Deals
  • Pistol
    • Pistol Accessories
    • Pistol Lower Parts
    • Pistol Magazines
    • Pistol Upper Parts
    • Pistol Barrels
    • Pistol Slides
  • CAA Micro Conversion Kits
    • CAA Micro Conversion Kits – Glock
    • CAA Micro Conversion Kits – Polymer80
    • CAA Micro Conversion Kits – Taurus
  • Cerakote
    • Cerakoted 80% Lower
    • Cerakoted Handguards
    • Cerakoted Upper Receiver
  • Upper Parts
    • Barrels
    • Bolt Carrier Groups
    • Charging Handles
    • Complete Upper Assemblies
    • Upper Receivers
    • Dust Covers | Forward Assists
    • Gas Blocks | Gas Tubes
    • Handguards
    • Muzzle Devices
      • .223/5.56
      • .300/.308/7.62
      • .450/.458/.50
      • 9MM
      • Thread Protector
      • Adaptor
      • Crush Washers
  • Lower Parts
    • 80% Lower Receivers
    • Lower Parts Components
    • Lower Parts Kits
    • Pistol Braces
    • Stocks and Buffer Kits
    • Triggers
  • Accessories
    • AR Tools and Cleaning
    • Bipods
    • Grips
    • Magazines
      • 5.56 / 2.23
      • 9MM
      • Laser Engraved
      • Speciality Calibers
    • Misc Accessories
    • Mounts
    • Rail Accessories
    • Optics
    • Scope Rings
    • Slings
    • Sights
    • Bore Sight
  • TekMat
    • Handgun
    • Military
    • Miscellaneous
    • Rifle
  • Equipment & Gear
    • Safety Gear
    • First Aid
    • Survival
    • Bags | Packs
    • Holsters
    • Tactical Vest
    • Knives
    • Can and Golfball Launchers
    • Flame Throwers
    • Tannerite
    • Apparel
  • Specials
    • Clearance
    • Gift Packages
    • New Items
  • Contact Us
  • Ammo
    • Pistol Ammo
    • Rifle Ammo
    • Shotgun Shells
    • Brass
    • Ammo Cans
  • Build Kits
    • Pistols
    • Rifles
  • Ammo Deals
  • Pistol
    • Pistol Accessories
    • Pistol Lower Parts
    • Pistol Magazines
    • Pistol Upper Parts
    • Pistol Barrels
    • Pistol Slides
  • CAA Micro Conversion Kits
    • CAA Micro Conversion Kits – Glock
    • CAA Micro Conversion Kits – Polymer80
    • CAA Micro Conversion Kits – Taurus
  • Cerakote
    • Cerakoted 80% Lower
    • Cerakoted Handguards
    • Cerakoted Upper Receiver
  • Upper Parts
    • Barrels
    • Bolt Carrier Groups
    • Charging Handles
    • Complete Upper Assemblies
    • Upper Receivers
    • Dust Covers | Forward Assists
    • Gas Blocks | Gas Tubes
    • Handguards
    • Muzzle Devices
      • .223/5.56
      • .300/.308/7.62
      • .450/.458/.50
      • 9MM
      • Thread Protector
      • Adaptor
      • Crush Washers
  • Lower Parts
    • 80% Lower Receivers
    • Lower Parts Components
    • Lower Parts Kits
    • Pistol Braces
    • Stocks and Buffer Kits
    • Triggers
  • Accessories
    • AR Tools and Cleaning
    • Bipods
    • Grips
    • Magazines
      • 5.56 / 2.23
      • 9MM
      • Laser Engraved
      • Speciality Calibers
    • Misc Accessories
    • Mounts
    • Rail Accessories
    • Optics
    • Scope Rings
    • Slings
    • Sights
    • Bore Sight
  • TekMat
    • Handgun
    • Military
    • Miscellaneous
    • Rifle
  • Equipment & Gear
    • Safety Gear
    • First Aid
    • Survival
    • Bags | Packs
    • Holsters
    • Tactical Vest
    • Knives
    • Can and Golfball Launchers
    • Flame Throwers
    • Tannerite
    • Apparel
  • Specials
    • Clearance
    • Gift Packages
    • New Items
  • Contact Us
Home / Products tagged “.300 Blackout Complete Upper”

.300 Blackout Complete Upper

  • 10.5" .300 Blackout Upper

    10.5″ .300 Blackout Upper

    $374.49 Original price was: $374.49.$299.59Current price is: $299.59.
    Add to cart
  • 7.5" 300 AAC Blackout | Forged Upper | 1:8 Twist w/ 7" Free Float Handguard

    7.5″ 300 AAC Blackout | Forged Upper | 1:8 Twist w/ 7″ Free Float Handguard

    Rated 4.50 out of 5
    $374.49 Original price was: $374.49.$288.89Current price is: $288.89.
    Add to cart
  • 7.5" .300 Blackout Stainless Steel Complete Upper Receiver

    7.5″ .300 Blackout Stainless Steel Complete Upper Receiver

    $427.99 Original price was: $427.99.$320.99Current price is: $320.99.
    Add to cart
  • AR-15 Upper Assembly | 7.5" Chromoly Vanadium | .300 BO | 1:7 twist | With 7" Quad Rail

    AR-15 Upper Assembly | 7.5″ Chromoly Vanadium | .300 BO | 1:7 twist | With 7″ Quad Rail

    $439.76 Original price was: $439.76.$379.84Current price is: $379.84.
    Read more

    Out of stock

  • 16" 300 Blackout Assembled Upper w/ 15" Handguard

    16″ 300 Blackout Assembled Upper w/ 15″ Handguard

    Rated 5.00 out of 5
    $320.99
    Read more

    Out of stock

  • 16" 300 Blackout Upper with 12" Handguard

    16″ 300 Blackout Upper with 12″ Handguard

    $320.99 Original price was: $320.99.$288.89Current price is: $288.89.
    Read more

    Out of stock

  • 5" 300 BO Assembled Upper

    5″ 300 BO Assembled Upper

    $353.09
    Read more

    Out of stock

Showing all 7 results

Products

  • Build Kits
  • Upper Parts
  • Lower Parts
  • Accessories
  • Clearance
  • Ammo
  • Pistol
  • Equipment Gear
  • New Arrivals

About

  • About Us
  • Blog
  • Terms & Conditions
  • Contact Us
  • Login
  • Become a Dealer
  • Privacy Policy
  • FAQs
  • Sitemap

Follow Us

Facebook Instagram Twitter
  • 785-615-6186
  • [email protected]
  • Durkin Tactical, PO Box 13, Eudora, KS 66025

Get The Latest Intel

Sign up for news and updates

© 2017 - 2025, Durkin Tactical. All rights reserved

Made in USA

✕