Menu
MMC Armoryhome
MMC Armory
My Account Become a Dealer Blog
Follow Us
Help Center
0 item(s) in Cart   •   TOTAL: $0
Search
Search
  • Shop All
    • AR-15 / AR-10 Parts and Accessories
    • Handgun Kits, Parts, & Accessories
    • Magazines
    • Sights and Optics
    • Outdoor & Survival Gear
    • Body Armor
    • Shooting Gear
    • Gunsmithing Tools
    • Combos
  • AR-15 & AR-10 Build Kits
    • ELITE AR-15 Upper & Lower Build Kits
    • Upper Builds Under $199.99
    • Upper Build Kits
    • Lower Build Kits
    • Complete Upper Build Kits
    • Full Build Kits (Everything Minus Lower)
    • Side Charging Upper Receiver Builds
    • Top Shelf Build Kits
    • Upper Build Starter Kits
    • Finish Your Build Kit
    • Receiver Sets
    • Builder Sets
    • Lightshow 5.56
    • FRT Lower Build Kits
    • Ambidextrous Lower Build Kits
  • Gun Parts
  • Handgun Kits & Parts
    • Competition Slides
    • Duty Slides
    • Glock 17 Gen 1-3 Compatible
    • Glock 17 Gen 4 Compatible
    • Glock 19 Gen 1-3 Compatible
    • Glock 19 Gen 4 & 5 Compatible
    • Glock 34 Compatible
    • Glock 43 Compatible
    • Mercury Precision Competitor Line
    • Mercury Precision Complete Line
    • Pistol Optics
    • SIG Sauer P320 Compatible
  • Firearms
    • Journeyman
    • AK Rifles & Pistols
    • AR Rifles & Pistols
    • Handguns
    • Rifles
    • Shotguns
    • Firearm Bundles
    • Stripped Lower Receivers
  • Brands
    • 0-9
    • A
    • B
    • C
    • D
    • E
    • F
    • G
    • H
    • J
    • K
    • L
    • M
    • N
    • O
    • P
    • R
    • S
    • T
    • U
    • W
    • Y
  • Suppressor Ready Builds
Search

Shop By 5.56 NATO


The .223 Wylde and 5.56 NATO are the most popular calibers for the AR-15 platform. These rounds are great for a wide range of uses from military and self defense to small game hunting. It's also a very affordable option for range days.

Top Sellers

Recoil Technologies AR-15 5.56/.223/.300/.350 Complete Bolt Carrier Group *Made In The USA*
Recoil Technologies AR-15 5.56/.223/.300/.350 Complete Bolt Carrier Group *Made In The USA*
$89.99 $59.99
Gauntlet Arms
Gauntlet Arms "Sandel" AR-15 5.56 NATO 10.5" Carbine Gas Inch 1-8 T Phosphate Cryo Treated Barrel
$79.99 $59.99
Davidson Defense
Davidson Defense "Satellite" 5.56x45mm 16.5" QPQ Nitride Medium Profile AR-15 Barrel
$89.99 $64.99
Bear Creek Arsenal
Bear Creek Arsenal "Gael" 7.5" AR-15 Pistol Barrel 5.56 NATO Stainless Steel 1-7 Twist
$74.99 $54.99
Bear Creek Arsenal
Bear Creek Arsenal "Irithyll" AR-15 AR Pistol Barrel 7.5" Contour Barrel 1-7 Twist 5.56 NATO Manganese Phosphate Finish
$69.99 $49.99
Magpul PMAG GEN M3 Magazine AR-15 30 Rd Round
Magpul PMAG GEN M3 Magazine AR-15 30 Rd Round
$19.99 $14.99
Gauntlet Arms
Gauntlet Arms "Tactical Match" AR-15 16" M4 Contour .223 Wylde 1:8 Twist Carbine Phosphate Barrel (Cryo-Treated)
$74.99 $54.99
MMC Combos AR-15 Magpul 30 Round M2 PMAG 3 Pack
MMC Combos AR-15 Magpul 30 Round M2 PMAG 3 Pack
$49.99 $39.99
Davidson Defense
Davidson Defense "Spriggan" AR-15 7.5" Pistol Barrel, 1:7 Twist .223 Wylde, Contour Barrel with Phosphate Finish
$64.99 $49.99
Davidson Defense 16.5-inch .223 Wylde AR-15 Barrel, Nitride Finish, 1:7 Twist, Mid-Length Gas, 4150 Steel, Engraved
Davidson Defense 16.5-inch .223 Wylde AR-15 Barrel, Nitride Finish, 1:7 Twist, Mid-Length Gas, 4150 Steel, Engraved
$94.99 $69.99

Manufacturer

  1. Home
  2. Calibers
  3. Shop By 5.56 NATO
Global Banner Global Banner Mobile

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

Products [87]

Sort by:
1 2 3 4 Next Page View All
ELD Performance AR-15 10.5
ELD Performance AR-15 10.5" "Needle" 5.56 NATO, SS, Carbine Gas, M4 Contour, 1-7 T Barrel
$99.99 $74.99 Sale
In Stock
Add To Cart
US Tactical Ind. Enhanced Stainless Steel 5.56/9mm Firing Pin Retainer
US Tactical Ind. Enhanced Stainless Steel 5.56/9mm Firing Pin Retainer
$4.99 $2.99 Sale
In Stock
Add To Cart
ELD Performance
ELD Performance "Galatine" AR-15 8.5" 5.56 NATO, Pistol Gas, M4 Contour, 1-7T Parkerized Barrel
$169.99 $124.99 Sale
Out of Stock
Add To Cart
ELD Performance
ELD Performance "The Special" AR-15 20" .223 Wylde, Rifle gas, Hbar, 1:8T, Fluted Stainless Steel Barrel
$254.99 $194.99 Sale
Out of Stock
Add To Cart
MMC Combos KAK Blade AR-15 Finish Your Pistol Build Kit - 5.56/.223/.300 BLKOUT/.350 Legend
MMC Combos KAK Blade AR-15 Finish Your Pistol Build Kit - 5.56/.223/.300 BLKOUT/.350 Legend
$269.99 $194.99 Sale
In Stock
Add To Cart
ELD Performance AR-15
ELD Performance AR-15 "Manilla" 8.5" 5.56 NATO, Pistol Gas M4 contour 1:7T, Stainless Steel Barrel
$109.99 $79.99 Sale
Out of Stock
Add To Cart
Faxon Firearms AR-15 11.5
Faxon Firearms AR-15 11.5" Gunner, 5.56 NATO, Mid-Length, .625 Gas, 4150 QPQ, 1-8T Barrel
$159.99 $119.99 Sale
Out of Stock
Add To Cart
Faxon Firearms AR-15 16
Faxon Firearms AR-15 16" Gunner, 5.56 NATO, Mid-Length, .625 Gas, 4150 QPQ, 1-8T Barrel
$224.99 $169.99 Sale
Out of Stock
Add To Cart
Faxon Firearms AR-15 18
Faxon Firearms AR-15 18" Gunner, 5.56 NATO, Rifle-Length, .625 Gas, 4150, Nitride, 1-8T Barrel
$189.99 $139.99 Sale
Out of Stock
Add To Cart
Davidson Defense
Davidson Defense "Zero Motivation" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 416R Stainless 1-7T Barrel 7" Smooth Tube Handguard (Assembled or Unassembled)
$164.99 $124.99 Sale
In Stock
Select Options
Ballistic Advantage 10.5
Ballistic Advantage 10.5" 5.56 Government Profile Carbine Length Barrel
$179.99 $134.99 Sale
Out of Stock
Add To Cart
3 Gun Labs Inc. AR-15 LMB Low Mass Aluminum 5.56 Nato .223 Rem 300 BLK OUT (BCG) Bolt Carrier Group **Very Durable Plasma Finish- Gold**
3 Gun Labs Inc. AR-15 LMB Low Mass Aluminum 5.56 Nato .223 Rem 300 BLK OUT (BCG) Bolt Carrier Group **Very Durable Plasma Finish- Gold**
$299.99 $139.99 Sale
Out of Stock
Add To Cart
ELD Performance
ELD Performance "Magnum" AR-15 24" .223 Wylde, Rifle Gas, .875 Gas, HBar, 1-8 T, Bull Barrel
$139.99 $119.99 Sale
Out of Stock
Add To Cart
MMC Arms
MMC Arms "Rat-Tat-Tat" AR-15 Pistol Featuring Davidson Defense Upper Receiver 7.5" 5.56 NATO 416R Stainless 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$269.99 $204.99 Sale
Out of Stock
Select Options
Lancer, Magazine, AR-15 L5 Advanced Warfighter, .223/5.56, 30Rd, Translucent Purple
Lancer, Magazine, AR-15 L5 Advanced Warfighter, .223/5.56, 30Rd, Translucent Purple
$29.99 $21.99 Sale
Out of Stock
Add To Cart
Davidson Defense
Davidson Defense "Scaup" AR-15 Pistol Upper Receiver 7.5" 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel 7" M-Lok Handguard (Assembled or Unassembled)
$199.99 $149.99 Sale
Out of Stock
Select Options
MMC Combos Adaptive Tactical AR-15 Finish Your Rifle Build Kit - 5.56/.223/.300/.350
MMC Combos Adaptive Tactical AR-15 Finish Your Rifle Build Kit - 5.56/.223/.300/.350
$274.99 $174.99 Sale
In Stock
Add To Cart
Magpul Industries, M2 With Window, .223 Rem/5.56 NATO, 30Rd Magazine
Magpul Industries, M2 With Window, .223 Rem/5.56 NATO, 30Rd Magazine
$19.99 $15.99 Sale
In Stock
Add To Cart
MMC Arms Top Shelf
MMC Arms Top Shelf "Lynx" AR-15 Featuring Davidson Defense Upper Receiver 18" Faxon Firearms 5.56 NATO 4150 CMV QPQ Nitride 1-8T Barrel 17.5" KeyMod ODIN Works Handguard (Assembled or Unassembled)
$424.99 $319.99 Sale
Out of Stock
Select Options
Davidson Defense
Davidson Defense "Fregata" AR-15 Pistol Upper Receiver 10.5" 5.56 NATO 4150 CMV 1-7T Barrel 12" M-Lok Handguard (Assembled or Unassembled)
$194.99 $144.99 Sale
Out of Stock
Select Options
Gauntlet Arms
Gauntlet Arms "Sandel" AR-15 5.56 NATO 10.5" Carbine Gas Inch 1-8 T Phosphate Cryo Treated Barrel
$79.99 $59.99 Sale
In Stock
Add To Cart
Davidson Defense
Davidson Defense "Giga Wing" AR-15 Pistol Upper Receiver 10.5" 5.56 NATO 4150 CMV 1-8T Barrel 12" M-Lok Handguard (Assembled or Unassembled)
$194.99 $144.99 Sale
Out of Stock
Select Options
Davidson Defense
Davidson Defense "Regiment" AR-15 Pistol Upper Receiver 11.5" 5.56 NATO 4150 CMV 1-7T Barrel Carbine Length Drop-In Handguard (Assembled or Unassembled)
$149.99 $114.99 Sale
Out of Stock
Select Options
Davidson Defense
Davidson Defense "Blade Eagle" AR-15 Upper Receiver 24" 5.56 NATO 416R Stainless 1-9T Target Crowned Bull Barrel 15" M-Lok Handguard (Assembled or Unassembled)
$214.99 $159.99 Sale
Out of Stock
Select Options
1 2 3 4 Next Page View All
Links
  • Links
  • About Us
  • Warranty, Returns & Terms
  • Frequently Asked Questions (FAQ)
  • Shipping Info
  • Help Center
  • Shipping Restrictions
  • Privacy Policy
  • Do Not Sell My Personal Information
  • Polymer80 Statement
  • FFL Locator
  • Stay Connected
  • Facebook
  • Pinterest
  • Twitter
  • YouTube
  • Instagram

Copyright MMC Armory. All Rights Reserved. eCommerce Software by 3dcart.

TOP

Information

  • Call Us +1 (833) 989-3380
  • Home
  • About Us
  • My Account
  • Dealer Application
  • Giveaway

Browse by Category

Contact Us

[email protected]
+1 (833) 989-3380
0 Items

Store Search

Logo