STNGR 16″ .223 Wylde Complete Upper Receiver w/ 15″ RPTR® Handguard, BCG & CH

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STNGR Complete .223 Wylde Upper with RPTR Handguard

The RPTR complete upper from STNGR has everything you need to take a complete lower to a full rifle fast. Perfect for those who want to save time with a truly plug-and-play solution.

This complete upper uses a hybrid 223 Wylde barrel with 1:8 twist, performance Bolt Carrier Group (BCG), billet upper, mid-length gas system and is compatible with all mil-spec lowers. All parts are made, assembled in the USA and backed by the legendary lifetime SWARM Warranty.

Shop the new complete upper and join the SWARM!


STNGR Complete AR-15 Upper Receiver with 16 Inch Barrel, BCG and Charging Handle - RPTR Handguard, Black

  •  Billet Upper Receiver
  • 16″ Barrel – 223 Wylde, 1:8 Twist (223 Wylde is a hybrid chamber optimized for 5.56 NATO & 223 Rem rounds
  • STNGR RPTR 15″ M-Lok Free Float Handguard in anodized black
  • AR15 Charging Handle – Forged
  • Black Nitride M16 Bolt Carrier Group (BCG)
    • 9310 Alloy Steel Bolt – Case Hardened, Shot Peened, MPI
    • 8620 Alloy Steel Carrier
  • Low Profile Gas Block .750″, Set Screw, Steel – Nitride Finish
  • AR15 Gas Tube – Mid-Length
  • Flash Hider- A2, Crush Washer
  • Pin, Hinge, Dust Cover, Ejection Port, Spring
  • Barrel Material: 4150 alloy steel with a Black Nitride finish

All parts are made in the USA. STNGR Complete Uppers are assembled by hand.


Just drop your upper into your lower, install an optic, and you’re good to go.

SHOOT .223 & 5.56 AMMO

The 223 Wylde hybrid chamber allows you to safely shoot both 5.56 NATO and .223 Remington caliber ammunition.

Made in the same facility as other top brands, this barrel is built to outshoot other premium barrels on the market. Engineered from 4150 gun barrel steel and Black Nitride treated to ensure corrosion resistant performance through thousands of rounds. Upgrade your AR-15 and enjoy superior accuracy and reliability with every shot.


When we say “complete upper”, we really mean it. Everything you need is included – and that means a high performance Bolt Carrier Group (BCG) and charging handle too – for free.

But what does “high performance BCG” even mean?
Simple. A feature packed Bolt Carrier Group designed from the ground up to increase reliability and durability of your rifle.
The 8620 alloy steel, case hardened, black nitride finished Carrier paired with a 9310 alloy steel, case hardened, shot peened, MPI, black nitride finished Bolt makes for a BCG that will cycle flawlessly for years under the gnarliest conditions.
Reliability when you need it.


The RPTR handguard has built in anti-rotation tabs to prevent any kind of rotation.

These tabs integrate perfectly with our billet upper. Like peanut butter and jelly it’s a match made in heaven.


  • Fit: AR-15
  • Caliber: .223 WYLDE (.223 REM and 5.56 NATO)
  • Barrel Length: 16″
  • Gas System: Midlength
  • Handguard Length: 15″
  • Overall Weight: 4.28 lbs
  • Finish: Type III hardcoat anodized

Join the SWARM with STNGR Gear Today


STNGR proudly stands behind their products with the SWARM Lifetime Warranty. If you have any issues happen that aren’t caused by normal use, they’ll send you a replacement – for free. It’s that simple. You also get free returns and exchanges for 60 days.

Swarm Warranty
Read the full warranty here.


Have more questions like “What is is difference between the HWK, RPTR and VYPR handguards?”. Check out STNGR’s FAQ here.

AR-15s 101 Fundamentals course & Top Asked AR-15 Questions. Updated regularly to give you the most current information.

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Have Questions About this Product?

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

SWARM Warranty

STNGR USA products are warranted to the *original purchaser against any defects in materials and workmanship for the lifetime of the product. STNGR USA has sole discretion to determine manufacturer’s defects. The Swarm Warranty policy does not cover loss or theft. Cosmetic damage or changes that leave the product still in a functional condition, damage from improper use or intentional damages are also not covered by the warranty and will not be accepted. Items that have been modified or in any way altered from the original condition are not covered by the Swarm Warranty.

Eyewear lenses are fully covered by a 1 year scratch warranty. If you scratch or damage your lenses within 1 year of purchasing, STNGR will send you up to 1 pair of replacement lenses. This warranty only applies to the original purchase and not subsequent replacements. You also qualify for **20% off replacement lenses for life. Email  to receive your discount code.

Eyewear Lost & Broken Replacement Discount

Sometimes life happens. If you ever break or lose your sunglasses, no matter the reason, you’re covered with a hefty discount. Shoot STNGR an email at and you’ll get you hooked up with an exclusive 30% discount on future replacements.

*The original purchaser may have purchased from any of the following sources: Directly from STNGR ( or or from an authorized dealer, distributor, or retailer. The original purchaser may be asked to show proof of purchase.

**The 20% discount is subject to replacement lens availability.