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Del-Ton Complete AR-15 Upper Receiver – .223/5.56 NATO, 16″ Heavy Barrel, Flat Top, A2 Flash Hider, Mil-Spec Forged Upper

Built to deliver dependable accuracy and enhanced durability, the Del-Ton 16″ Heavy Barrel Upper Receiver is perfect for range shooters, tactical training, or home defense builds. Featuring a 16” heavy-profile barrel chambered in .223 Remington/5.56 NATO, this upper absorbs heat more effectively and maintains consistent accuracy during prolonged fire.

The flat-top upper gives you the flexibility to mount any optic or backup sights, while the classic A2 flash hider keeps muzzle flash to a minimum.

-16″ mid-length, 1×9 twist chrome moly barrel
-Flat top upper
-Bolt & carrier assembly
-Charging handle
-Mid length handguards

Del-Ton A3 AR-15 Complete Upper Receiver 5.56x45mm NATO 20″ Government Contour Barrel

This Del-Ton Rifle A3 Flat-Top AR-15 Upper Receiver comes complete and fully assembled, ready for installation onto any mil-spec lower receiver. The Forged 7075 T6 Aluminum upper features a 20″ Government Contour Barrel, F-Marked Front Sight Assembly, 2-Piece Polymer A2-Style Handguards with heat shield and an A2 Flash Hider. The barrel’s 5.56x45mm NATO Chamber,  M4 Feed Ramps and 1 in 9″ Twist rifling ensure reliable feeding and functioning with a wide variety of both commercial and higher pressure military surplus ammunition. This full size Rifle upper wrings the greatest velocity and highest performance from 223 Remington/5.56 NATO ammunition, as well as offering a significantly smoother recoil impulse and longer sight radius than any 16″ carbine.

The Bolt Carrier is machined from 8620 Steel for strength, incorporates a properly staked, chrome lined gas key, and houses a Carpenter 158 Steel Bolt that has been High Pressure Tested and Magnetic Particle Inspected (MPI) to guarantee a consistent, structurally sound part. This upper is an excellent choice for both the first time buyer and seasoned AR aficionado looking for a quality product at a good price…..

⚙️ Key Features:

  • Caliber: .223 Remington / 5.56 NATO

  • Barrel Length: 16” Heavy Barrel Profile – Better accuracy and heat dissipation

  • Barrel Material: Chrome Moly Steel – Tough and reliable

  • Barrel Twist: 1:9 – Ideal for 55–62 grain bullets

  • Muzzle Device: A2 Flash Hider – Standard military-style flash suppression

  • Gas System: Carbine Length

  • Receiver Material: 7075-T6 Forged Aluminum – Mil-spec, black anodized finish

  • Upper Style: Flat Top – Picatinny rail for optics or iron sights

  • Handguard: Standard Carbine-Length Polymer

  • Includes: Barrel, gas system, flash hider, handguard, and complete upper receiver

  • Excludes: Bolt carrier group (BCG) and charging handle

  • Made in the USA

This upper is an excellent choice for shooters looking for a little extra barrel weight and consistent performance at a great price point.

FAQ:

Q: What’s the advantage of a heavy barrel?
A: A heavy barrel profile reduces barrel flex and heat distortion, improving accuracy and longevity during extended shooting sessions.

Q: Does this include a bolt carrier group or charging handle?
A: No — this upper does not include the BCG or charging handle. They are available separately.

Q: Is this compatible with mil-spec AR-15 lowers?
A: Yes — it is a mil-spec complete upper and works with any standard AR-15 lower.

Also Available:

Radian Model 1 Complete AR-15 Upper – 10.5″ .223 Wylde Threaded Barrel, Black Cerakote, M-LOK, Includes BCG & Raptor Charging Handle

Colt Mil-Spec AR-15 Upper Receiver – .223/5.56 NATO, Black Finish, M4 Feed Ramps, Forward Assist & Dust Cover

DPMS Oracle AR-15 Rifle Kit – .223/5.56 NATO, A3 Flat-Top Upper, Complete Build Kit Minus Lower Receiver

Odin Works Stripped AR-15 Upper Receiver – No Forward Assist, Includes Dust Cover, Billet Aluminum, Lightweight & Modern Design

Aero Precision M5 AR-10 Upper Receiver – .308 Winchester, Assembled, Flat Dark Earth (FDE), DPMS High Profile, Forward Assist & Dust Cover Included

POF Minuteman Complete Upper – 10.5″ Barrel, 5.56/.223, Direct Impingement, M-LOK Handguard, Includes BCG & Charging Handle

Aero Precision M5 AR-10 Upper Receiver – .308 Winchester, Assembled, Black Anodized, Forward Assist & Dust Cover, DPMS High Profile

Aero Precision AR-15 Stripped Upper Receiver – Multi-Cal, Flat Dark Earth (FDE), Mil-Spec, 7075-T6 Forged Aluminum

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