STNGR 16 Inch .223 Wylde JNL Ready Build Kit – 15 Inch RPTR Assembled Upper
Uppers Built to Order – Ships Within 3 Business Days
Features
- Just Needs Lower kit includes an assembled upper receiver plus the parts needed to complete a stripped AR-15 lower receiver
- STNGR 16 inch .223 Wylde assembled upper uses a mid-length gas system and 15 inch RPTR handguard for a full-length M-LOK setup
- .223 Wylde chamber is built for use with both .223 Remington and 5.56 NATO ammunition
- Assembled upper includes bolt carrier group and charging handle
- Lower build components include mil-spec controls, fire control springs and pins, A2 grip, M4 stock, trigger guard, and carbine buffer assembly
The STNGR 16 inch .223 Wylde JNL Ready Build Kit is set up for customers who want the upper receiver already assembled and only need to supply a stripped AR-15 lower receiver. The kit includes a STNGR 16 inch .223 Wylde complete assembled upper with a 15 inch RPTR handguard, BCG, and charging handle, along with the lower components needed to complete a straightforward carbine-style lower.
Note: This kit includes an assembled upper receiver and lower build components. Stripped lower receiver is not included, and lower parts are not assembled.
Specifications
- Brand: STNGR / AT3 Tactical
- Model: 16 inch .223 Wylde JNL Ready Build Kit with 15 inch RPTR Handguard
- MPN: AT3-JNL-RBK-16-223W-15RPTR
- Platform: AR-15
- Build Type: Just Needs Lower / assembled upper with lower build components
- Upper Receiver: STNGR 16 inch .223 Wylde Complete Assembled Upper Receiver with 15 inch RPTR Handguard, BCG, and Charging Handle
- Caliber: .223 Wylde
- Barrel Length: 16 inches
- Barrel Profile: Government profile
- Twist Rate: 1:8
- Gas System: Mid-length
- Muzzle Thread: 1/2×28
- Handguard: 15 inch STNGR RPTR
- Bolt Carrier Group: STNGR 5.56/.300 BLK phosphate M16 BCG with C158 bolt
- Charging Handle: AT3 Standard GI Charging Handle
- Stock: AT3 Tactical M4 Stock with Sling Loop
- Grip: AT3 AR-15 A2 Mil-Spec Pistol Grip
- Trigger Guard: STNGR Mil-Spec 7075 Trigger Guard Assembly
- Buffer System: Carbine buffer assembly
- Buffer Weight: 3.0 oz
- Color: Black
What’s Included
- 1x STNGR 16 inch .223 Wylde Complete Assembled Upper Receiver with 15 inch RPTR Handguard, BCG, and Charging Handle
- 1x AT3 AR-15 Mil-Spec Bolt Catch – Black
- 1x AT3 Mil-Spec AR-15 Bolt Catch Plunger
- 1x AT3 Mil-Spec AR-15 Bolt Catch Pin
- 1x AT3 Mil-Spec AR-15 Bolt Catch Spring
- 1x AT3 Mil-Spec AR-15 Buffer Retainer
- 1x AT3 Mil-Spec AR-15 Buffer Retainer Spring
- 1x AT3 Mil-Spec AR-15 Magazine Catch – Black
- 1x AT3 Mil-Spec AR-15 Magazine Catch Button – Black
- 1x AT3 Mil-Spec AR-15 Magazine Catch Spring
- 1x AT3 Mil-Spec AR-15 Pivot Pin – Black
- 2x AT3 Mil-Spec AR-15 Pivot Pin/Takedown Pin Detent
- 2x AT3 Mil-Spec AR-15 Pivot Pin/Takedown Pin Detent Spring
- 1x AT3 Mil-Spec AR-15 Safety Selector – Black
- 1x AT3 Mil-Spec AR-15 Selector Detent
- 1x AT3 Mil-Spec AR-15 Selector Detent Spring
- 1x AT3 Mil-Spec AR-15 Takedown Pin – Black
- 1x AT3 Mil-Spec AR-15 Pistol Grip Screw
- 1x AT3 Carbine Buffer – 3.0 oz
- 1x AT3 Carbine Buffer Spring for AR-15
- 1x AT3 Castle Nut for AR-15 Buffer Tubes – Black
- 1x AT3 Mil-Spec Buffer Tube – AR-15 – Black
- 1x AT3 Mil-Spec End Plate for AR-15 – Black
- 1x AT3 Mil-Spec AR-15 Disconnector Spring
- 1x AT3 Mil-Spec AR-15 Hammer Spring
- 2x AT3 Mil-Spec AR-15 Hammer/Trigger Pin
- 1x AT3 Mil-Spec AR-15 Trigger Spring
- 1x AT3™ GI Mil-Spec AR-15 Trigger – Curved
- 1x STNGR Mil-Spec 7075 Trigger Guard Assembly
- 1x AT3 AR-15 A2 Mil-Spec Pistol Grip
- 1x AT3 Tactical M4 Stock

