This Proof Research PR15 PXT is a 11.5-inch AR-15 barrel chambered in .223 Wylde with a 1:7 twist. The .223 Wylde chamber runs both .223 Remington and 5.56 NATO. The short length suits a compact AR-15 build, and the 1:7 twist handles heavier bullets.
- Brand: Proof Research
- Fits: AR-15
- Model: PR15 PXT
- Chamber: .223 Wylde
- Length: 11.5 in.
- Twist: 1:7
- Manufacturer part #: 152058
- UPC: 843068152058
