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18'' 223 WYLDE SS Straight Flute Barrel
12'' Rail - A2 Flash Hider
AR15 Rifle Upper Assembly

18" 223 Wylde AR15 Upper Assembly 1x8 Keymod Extended Rifle Length Rail

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List Price: $599.99
Our Price: $469.99
Savings: $130.00

Quantity in Stock:28
Product Code: 18223SS1X8KMEXRL

Choose Rail Type*:

Upgrade Muzzle Device (1/2x28):

Add Magazine:

Add Bolt Carrier Group:

Add Charging Handle:


18" 223 WYLDE Stainless Straight Flute Barrel AR15 Rifle Upper Assembly with 12" Rail and A2 Flash Hider

  • 18" 223 WYLDE 416R Stainless Straight Flute Barrel with 1x8 Twist and 1/2x28 Threads. This barrel is designed to safely fire both .223 Remington and 5.56 NATO ammunition.
  • Mil-Spec Upper Receiver forged from 7075 T6 aluminum with forward assist and dust cover assembly installed. Hard coat anodized MIL-STD 8625 Type 3 Class 2.
  • 12" Narrow Profile Free Float Rail machined from 6061 T6 aluminum. Very comfortable and very light weight. Your choice of MLOK or KEYMOD attachment points along the entire length at 3, 6, and 9 positions. Hard coat anodized MIL-STD 8625 Type 3 Class 2.
  • 0.750" Low Profile Gas Block.
  • Mid Length Gas System.
  • Mil-Spec A2 Flash Hider with crush washer.
  • OPTION - Choose the Rail Type (MLOK or KEYMOD)
  • OPTION - Add a Magazine
  • OPTION - Add a Bolt Carrier Group
  • OPTION - Add a Charging Handle

This upper assembly will fit all standard AR15 lower receivers.

This item is "Firearm Parts", not a complete firearm (no serialized components). It will be shipped directly to you with no FFL transfer required.

You are responsible for knowing federal, state and local laws applicable to this item. AR15Part.com reserves the right to not ship to addresses where it may not be legal to own this item.

Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 2 Write a review »

  0 of 0 people found the following review helpful:
5 of 5 Ar15 upper purchase March 4, 2021
Reviewer: Richard Irby from Shingle Springs, CA United States  
Great product and great service.

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  0 of 0 people found the following review helpful:
5 of 5 Quality upper February 28, 2021
Reviewer: Rob from Charlotte, NC United States  
My first purchase here: fast shipping, good price, plenty of availability and a high quality upper. Very accurate on first 100 rounds - Thanks and look for more of my business!

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