TC Barrel for Contender. For the Best in Hunting Handguns. The Thompson Center Contender 22 LR 10 Bull Barrel is a high-quality barrel specifically designed for Thompson Center handguns. Made of durable steel and featuring a blued color, this barrel is perfect for hunting and sporting purposes. With a gauge/caliber of. 22 Long Rifle, this barrel provides excellent performance for your firearm. This product is proudly made in the United States by Thompson/Center Arms, ensuring top-notch craftsmanship and reliability.