The Davidson Defense Razorline 18-inch mid-length gas .223 Wylde AR-15 full build kit is engineered for precision and versatility. This kit features an 18-inch 416R stainless steel spiral fluted heavy barrel with 1:8 twist rate, providing reliable accuracy with enhanced rigidity and heat dissipation. The .223 Wylde chambering offers optimal performance with both 5.56 NATO and .223 Remington ammunition, making this kit well-suited for precision shooting applications. The mid-length gas system ensures smooth cycling with reduced recoil impulse. The upper receiver is crafted from 7075-T6 aluminum and includes M4 feed ramps for dependable feeding. The rifle is equipped with a lightweight M-Lok handguard made from 6061-T6 aluminum in sleek black finish, offering custom mounting options. The kit includes a low-profile gas block, AR-15 GI birdcage flash hider, and a complete bolt carrier group made from 9310 alloy steel. A SOPMOD style collapsible stock provides adjustability and storage compartments, while the mil-spec heavy-duty buffer tube supports stability under recoil. This full build kit allows for a reliable and customizable AR-15 platform, perfect for the discerning gunsmith, including all components except the lower receiver.
The 18-inch 416R stainless steel spiral fluted heavy barrel provides exceptional precision with enhanced rigidity and heat dissipation. The spiral fluting reduces weight while maintaining barrel stiffness, and the increased surface area promotes faster heat dissipation during extended shooting sessions. The 1:8 twist rate is optimized for stabilizing a wide range of bullet weights in both 5.56 NATO and .223 Remington. The .223 Wylde chambering offers the best of both worlds—the flexibility to shoot both cartridge types with match-grade accuracy potential, making this barrel well-suited for precision shooting and longer-range applications.
The mid-length gas system provides smooth, consistent cycling with reduced recoil impulse compared to carbine-length systems, ideal for accuracy-focused shooting with the 18-inch barrel length. The low-profile gas block maintains a streamlined front-end profile while ensuring reliable operation. The lightweight M-Lok freefloat handguard, made from 6061-T6 aluminum in sleek black finish, offers custom mounting options for bipods, lights, and other accessories. The M-Lok interface allows modular placement without added bulk, and the freefloat design promotes barrel harmonics and consistent accuracy by eliminating contact pressure on the barrel.
The SOPMOD style collapsible stock provides enhanced functionality with integrated storage compartments for batteries, small tools, or cleaning supplies. Mounted on a mil-spec heavy-duty buffer tube, the SOPMOD stock offers adjustability for shooters of varying sizes and shooting positions while supporting stability under recoil. The complete bolt carrier group made from 9310 alloy steel ensures wear resistance and dependable operation. The 7075-T6 aluminum upper receiver with M4 feed ramps provides dependable feeding and lasting durability. The GI birdcage flash hider manages muzzle rise and flash signature effectively.
This full build kit includes all necessary components to complete your AR-15 build except the lower receiver. Builders can pair this kit with a compatible lower receiver to create a complete, functional .223 Wylde platform engineered for precision and versatility. The Razorline with 416R stainless steel spiral fluted barrel, M-Lok handguard, and SOPMOD stock makes a reliable and customizable AR-15 platform, perfect for the discerning gunsmith seeking match-grade accuracy potential.
Follow safe handling practices and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Verify barrel length and overall configuration meet legal requirements in your jurisdiction. Confirm compatibility with your lower receiver and intended ammunition before assembly and use.
Caliber: .223 Wylde
Barrel Name: 18" 223 Wylde 416R Stainless Steel Spiral Fluted Heavy Barrel
Barrel Length: 18-inch
Barrel Material: 416R Stainless Steel
Barrel Twist Rate: 1:8
Barrel Finish: Nitride
Barrel Profile: HBAR
Barrel Thread Pitch: 1/2x28
Barrel Gas System Length: Mid-Length
Upper Receiver: AR-15 Upper Receiver with M4 Feedramps
Upper Receiver Material: 7075 T6 Aluminum
Upper Receiver Finish: Anodized
Handguard Material: 6061-T6 Aluminum
Handguard Color: Black
Handguard Style: M-Lok
Gas Block Name: Micro Low-Profile Gas Block
Gas Block Size: 0.750
Muzzle Device: AR-15 1/2x28 TPI GI Birdcage Flash Hider
Muzzle Thread Pitch: 1/2x28
Charging Handle Name: AR-15 M4 Charging Handle Mil-Spec Quality
Bolt Carrier Name: AR-15 5.56/.223/.300/.350 Complete Bolt Carrier Group
Bolt Carrier Material: 9310 Alloy Steel
Bolt Carrier Finish: Nitride
Buffer Tube: Mil-Spec Heavy-Duty AR-15 6-Position Buffer Tube
Buffer Weight: 3 oz
Recoil Spring Type: Standard Carbine Recoil Spring
End Plate: AR-15 M16 Mil-Spec Receiver End Plate
Stock Name: SOPMOD Style Collapsible Stock with Storage Compartments
Stock Material: Nylon Reinforced Polymer
Stock Style: Carbine
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