24″ 223 Wylde 1/8 Spiral Fluted Stainless Ar-15 Upper with M-Lok rail Threaded

24″ 223 Wylde 1:8 Spiral-Fluted Stainless AR-15 Upper — 15″ M-LOK

Precision 24″ heavy bull varmint upper with a 1:8 twist spiral-fluted 416R stainless barrel chambered in 223 Wylde (shoots 5.56 NATO & .223 Rem). Assembled, test-fired, and QC’d in-house. Add a BCG & charging handle from the menu and we’ll install, headspace-check, and test-fire the complete upper.

• 24″ 416R stainless spiral-fluted heavy bull barrel with 1:8″ (1:8) twist for optimal varmint/precision performance
• 223 Wylde chamber: safely shoots .223 Rem & 5.56 NATO
• 1/2-28 muzzle threads — compatible with brakes, comps & many suppressor mounts
• .936 low-profile gas block with rifle-length gas system for reliable cycling and reduced dwell
• 15″ M-LOK free-float handguard — modular accessory mounting and consistent barrel harmonics
• 7075-T6 Mil-Spec aluminum upper receiver, anodized black — M4 feed ramps, dust cover & forward assist
• Assembled & QC’d in-house; add BCG & charging handle and we’ll headspace check & test-fire the final build
• Limited lifetime warranty — details

Overview

Built for accuracy and thermal stability, the 24″ heavy bull spiral-fluted barrel reduces weight without sacrificing stiffness, giving you a predictable harmonics profile and faster cool-down between strings. The 1:8 twist makes this upper ideal for stabilizing a wide range of varmint and precision projectiles.

The 223 Wylde chamber blends the accuracy potential of a tighter chamber with the ability to safely fire 5.56 NATO rounds — a smart choice for shooters who want versatility without compromise. Combined with a rifle-length gas system and .936 low-profile gas block, this upper provides smooth cycling and consistent extraction for reliable performance at the range or in the field.

Each upper is custom-assembled to your order using proven components. Select a matched BCG & charging handle and we’ll complete the build, verify headspace, and test-fire before it ships.

Browse all AR-15 uppers to compare lengths, finishes, and configurations.

Specifications

Caliber	223 Wylde (compatible with .223 Rem & 5.56 NATO)
Barrel	24″ 415R stainless, spiral-fluted, heavy bull profile, 1:8 twist
Threading	1/2-28
Gas System	Rifle-length
Gas Block	.936 low-profile
Handguard	15″ free-float M-LOK
Upper Receiver	7075-T6 Mil-Spec aluminum, anodized black; M4 feed ramps, dust cover, forward assist
Assembly	Custom assembled & test-fired in-house; headspace check performed when BCG/charging handle added
Warranty	Limited lifetime warranty — see details
Optional Additions	Bolt Carrier Group, Charging Handle (select from menu)