The Proof Research 143483 PR15 22ARC 20 7 5/8-24 Standard Stainless barrel is a precision-crafted extra barrel designed for shooters who demand consistent performance from their AR platform. Built from stainless steel with a clean, polished profile and threaded 5/8-24 muzzle, it offers a balance of rigidity and manageable weight for repeatable accuracy.

This 20-inch barrel is ideal for those setting up a dedicated upper for the 22 ARC cartridge, whether for extended range sessions, training, or precision-focused shooting. Its threaded muzzle makes it ready for compatible brakes or suppressor mounts, while the stainless construction supports long-term durability and ease of maintenance. Proof Research is known for meticulous machining and innovation in barrel technology, and this model reflects that commitment to quality.

• Manufacturer: PROOF RESEARCH
• Model: 143483 PR15 22ARC 20 7 5/8-24 STND SS