The Proof Research PR15 PXT Carbon Fiber barrel is an 18-inch AR-15 barrel in .223, listed by distributors as part number 152126. Carbon fiber construction reduces weight compared with a steel barrel of similar stiffness. The 18-inch length suits a lightweight precision AR-15.
- Brand: Proof Research
- Fits: AR-15
- Model: PR15 PXT
- Caliber: .223
- Length: 18 in.
- Construction: carbon fiber
- Manufacturer part #: 152126
- UPC: 843068152126
