This Proof Research PR15 PXT is a 18-inch AR-15 barrel chambered in .223 Wylde with a 1:8 twist. The .223 Wylde chamber runs both .223 Remington and 5.56 NATO. The 18-inch length adds velocity for longer shots, making it a fit for a precision AR-15.
- Brand: Proof Research
- Fits: AR-15
- Model: PR15 PXT
- Chamber: .223 Wylde
- Length: 18 in.
- Twist: 1:8
- Manufacturer part #: 152133
- UPC: 843068152133
