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  • Top Sellers

Top Sellers

Recoil Technologies AR-15 5.56/.223/.300/.350 Complete Bolt Carrier Group
Recoil Technologies AR-15 5.56/.223/.300/.350 Complete Bolt Carrier Group
$199.99 $79.99
Custom Deal Adaptive Tactical AR-15 Finish Your Rifle Build Kit - 5.56/.223/.300/.350
Custom Deal Adaptive Tactical AR-15 Finish Your Rifle Build Kit - 5.56/.223/.300/.350
$249.99 $179.99
Magpul PMAG 30 AR/M4 Gen M2 MOE 5.56x45mm NATO (No Window)
Magpul PMAG 30 AR/M4 Gen M2 MOE 5.56x45mm NATO (No Window)
$12.99 $10.99
United Defense AR-15 5.56/.223 Complete Bolt Carrier Group
United Defense AR-15 5.56/.223 Complete Bolt Carrier Group
$199.99 $59.99
Magpul PMAG 30 AR/M4 Gen M2 MOE 5.56x45mm NATO (No Window) - 5 Pack
Magpul PMAG 30 AR/M4 Gen M2 MOE 5.56x45mm NATO (No Window) - 5 Pack
$79.99 $49.99
Custom Deal AR-15 Magpul M2 PMAG 3 Pack
Custom Deal AR-15 Magpul M2 PMAG 3 Pack
$59.99 $29.99
US Tactical Ind. Enhanced Stainless Steel 5.56/9mm Firing Pin Retainer ** 2 Pack**
US Tactical Ind. Enhanced Stainless Steel 5.56/9mm Firing Pin Retainer ** 2 Pack**
$19.99 $4.49
CMMG Magazine, AR-15, .350 Legend 10Rd
CMMG Magazine, AR-15, .350 Legend 10Rd
$24.99 $20.99
Fail Zero M16 AR-15 Nickel Boron M16 Bolt Carrier Group Complete
Fail Zero M16 AR-15 Nickel Boron M16 Bolt Carrier Group Complete
$199.99 $149.99
DD
DD "Ammosaurus" 16.5" AR-15 5.56 Nitride Full Build Kit W/ Aero
$649.99 $334.99
Magpul PMAG M3 AR-15/M4 5.56/.223 10 Round Magazine - Black
Magpul PMAG M3 AR-15/M4 5.56/.223 10 Round Magazine - Black
$14.99 $14.49
Davidson Defense
Davidson Defense "Choplifter" AR-15 Upper Receiver 16" 5.56 NATO 4150 CMV QPQ Nitride 1-8T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$689.99 $374.99

New Releases

Davidson Defense 'High Water'' 16
Davidson Defense 'High Water'' 16" AR-15 5.56 NATO Nitride Rifle Full Build Kit
$704.99 $389.99
Davidson Defense 'Hoppin'' 16
Davidson Defense 'Hoppin'' 16" AR-15 .223 Wylde Stainless Rifle Upper Build Kit
$644.99 $329.99
Davidson Defense 'Bubba' 16.5
Davidson Defense 'Bubba' 16.5" AR-15 5.56 NATO Nitride Rifle Upper Build Kit
$554.99 $239.99
Davidson Defense 'Catawampus' 16
Davidson Defense 'Catawampus' 16" AR-15 5.56 NATO Nitride Rifle Complete Upper Build Kit
$644.99 $329.99

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  3. 5.56 NATO
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Shop By | 5.56 NATO

You can fire the .223 Remington in the 5.56 NATO but not the other way around. The .223 Wylde is a chamber that allows the firing of both; there is no such thing as .223 Wylde ammunition. .223 Remington and 5.56 NATO are the standard rounds for most AR-15s. They have many advantages over other rounds as their smaller size makes them lighter to carry, less expensive, with lower recoil. This makes them great to practice with especially at short to mid-range. They excel at varmint hunting and are great for home defense. The main difference between the two is that the 5.56 was designed for the military and works better with the rapid firing of large amounts of ammunition while in combat. 

  • Barrels | 5.56 NATO Compatible
  • Bolt Carrier Groups | 5.56 NATO Compatible
  • Finish Your Build Kits | 5.56 NATO Compatible
  • Magazines | 5.56 NATO Compatible
  • Upper Builds | 5.56 NATO Compatible
  • Upper Build Starter Kits | 5.56 NATO Compatible
  • Muzzle Devices | 5.56 NATO Compatible

Products [486]

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DD
DD "Tuatara" 10.5" AR-15 5.56 Nitride Pistol Full Upper Build Kit W/ Ballistic Advantage, Guntec
$779.99 $464.99 Sale
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DD
DD "Tuatara" 10.5" AR-15 5.56 Nitride Complete Pistol Upper Build Kit W/ Ballistic Advantage, Guntec
$699.99 $384.99 Sale
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DD Elite Series
DD Elite Series "Anhinga" 16.5" AR-15 5.56 Nitride Upper Build Kit W/ Mercury Precision, Unique ARs
$779.99 $464.99 Sale
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DD Custom Arms Elite Series
DD Custom Arms Elite Series "Dacnis" AR-15 Featuring A Davidson Defense Billet Upper Receiver 16" Ballistic Advantage 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel Unique AR 15" Handguard (Assembled or Unassembled)
$739.99 $424.99 Sale
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Davidson Defense
Davidson Defense "Jesko" AR-15 Upper Receiver 18" .223 Wylde BSF Barrels Carbon Fiber Wrapped 416R Stainless Steel Fluted 1-8T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$1,204.99 $889.99 Sale
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Davidson Defense
Davidson Defense "Guacamole" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$669.99 $354.99 Sale
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Davidson Defense
Davidson Defense "Guacamole" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$594.99 $279.99 Sale
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Davidson Defense
Davidson Defense "Guacamole" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$514.99 $199.99 Sale
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DD Custom Arms Elite Series
DD Custom Arms Elite Series "Albatross" AR-15 Featuring An Aero Precision Upper Receiver 16" Rosco Manufacturing 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel Lakota Ops 15" M-Lok Handguard (Assembled or Unassembled)
$639.99 $324.99 Sale
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DD Elite Series
DD Elite Series "Angora" 16" AR-15 5.56 NATO Upper Build W/: Aero Precision, Fortis, Rise Armament and Rosco Mfg.
$864.99 $549.99 Sale
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DD Elite Series
DD Elite Series "Toad" 10.5" AR-15 5.56 NATO Pistol Upper Build Kit W/: Ballistic Advantage, Luth-AR and Geissele
$789.99 $474.99 Sale
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Davidson Defense
Davidson Defense "McCracken" AR-15 Upper Receiver 16.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$694.99 $379.99 Sale
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Davidson Defense
Davidson Defense "McCracken" 16.5" AR-15 5.56 Nitride Complete Upper Build Kit
$634.99 $319.99 Sale
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Davidson Defense
Davidson Defense "McCracken" 16.5" AR-15 5.56 Nitride Upper Build Kit
$554.99 $239.99 Sale
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Davidson Defense
Davidson Defense "Stegosaurus" AR-15 Upper Receiver 16" .223 Wylde 416R Stainless 1-8T Barrel 15.5" M-Lok Handguard (Assembled or Unassembled)
$714.99 $399.99 Sale
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DD
DD "Ammosaurus" 16.5" AR-15 5.56 Nitride Full Build Kit W/ Aero
$649.99 $334.99 Sale
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DD Elite Series
DD Elite Series "Yinlong" 12.5" AR-15 5.56 Nitride Upper Build Kit W/ Aero
$584.99 $269.99 Sale
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DD
DD "Yinlong" 12.5" AR-15 5.56 Nitride Complete Upper Build Kit W/ Aero
$654.99 $339.99 Sale
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DD
DD "Yinlong" 12.5" AR-15 5.56 Nitride Pistol Full Build Kit W/ Aero and Ballistic Advantage
$729.99 $414.99 Sale
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Davidson Defense
Davidson Defense "Troodon" AR-15 Upper Receiver 16" .223 Wylde 416R Stainless 1-8T Barrel 12" M-Lok Handguard (Assembled or Unassembled)
$629.99 $314.99 Sale
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Davidson Defense
Davidson Defense "Argentavis" AR-15 Pistol Upper Receiver 12.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 9.3" M-Lok Handguard (Assembled or Unassembled)
$774.99 $459.99 Sale
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Davidson Defense
Davidson Defense "Anqa" 16.25" AR-15 5.56 Nitride Upper Build Kit
$709.99 $394.99 Sale
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DD Custom Arms
DD Custom Arms "Coot" AR-15 Upper Receiver 16" 5.56 NATO 4150 CMV QPQ Nitride 1-8T Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$694.99 $379.99 Sale
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Davidson Defense
Davidson Defense "Ural" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$719.99 $404.99 Sale
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