Midwest Industries 11.5 Upper Receiver Group .223 Wylde

$764.69 2 in stock

Complete 11.5-inch upper receiver with Criterion Core barrel, Combat Rail HD M-LOK handguard, and direct impingement gas system. Chrome-lined 4150 steel barrel with 1/8 twist rate.

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Midwest Industries Upper Receiver Group - 11.5 Inch

This complete upper receiver group delivers the compact handling and maneuverability demanded by modern shooters who value both performance and practicality. Built on a proven platform, it combines quality components with thoughtful engineering.

Barrel and Chamber

The Criterion Core barrel is chambered in .223 Wylde, a versatile cartridge that accepts both 5.56 NATO and .223 Remington ammunition. The 11.5-inch length provides a balance between velocity and handling, while the 1/8 twist rate stabilizes a wide range of bullet weights. Chrome-lined and phosphate-coated 4150 chromium-molybdenum steel ensures durability and corrosion resistance. The barrel features M4 feedramps and a 1/2x28 threaded muzzle.

Upper Receiver and Gas System

The forged 7075 T6 aluminum upper receiver is hard-coat anodized for protection and features proper T-markings. A carbine-length direct impingement gas system provides reliable operation across various shooting conditions.

Handguard and Accessories

The Combat Rail HD Series M-LOK handguard offers multiple mounting options for accessories while maintaining a slim profile. The A2 flash hider reduces muzzle signature and blast.

Specifications

  • Barrel Length: 11.5 inches
  • Chambering: .223 Wylde
  • Twist Rate: 1/8
  • Weight: 3.2 lbs
  • Handguard: M-LOK compatible

Note: This upper receiver group does not include a charging handle or bolt carrier group. These components must be purchased separately.

Attributes

Caliber: .223 Wylde
Type: Upper Receiver Group
Barrel Length: 11.5"
Barrel Material: 4150 Chrome Moly Vanadium Steel
Twist Rate: 1:8
Platform: AR-15
Model: Upper Receiver Group
Action: Direct Impingement
Barrel Finish: Chrome-Lined
Barrel Description: Criterion Core Barrel, Criterion Core
Handguard: combat rail hd m-lok
Brand: Midwest Industries
Assembly Status: Assembled