NBS 20" 5.56 Government Contour 1:9 Rifle Length Barrel w/ FSB - Phosphate - 25398

The 20″ 5.56 Government Contour Rifle-Length Barrel with FSB Phosphate is a durable and affordable option for AR-15 builders. The government contour balances weight and strength, while the phosphate finish enhances corrosion resistance for long-lasting performance. Equipped with a front sight base (FSB), it’s perfect for traditional or versatile rifle builds. Designed for rifle-length gas systems, it ensures smooth and consistent operation. Shop high-quality AR-15 barrels for sale today and upgrade your build with one of the best AR-15 barrels for accuracy.

Here at Dirty Bird Industries, we work with a wide variety of machine shops and barrel manufacturers. When we come across a barrel maker we like, we will often decide to private label those barrels for resale under the NBS brand. We purchase these barrels in large quantities and then pass the savings on to our customers.

Why buy an NBS Brand Barrel:

• American Made: Sourced from a variety of Tier 1 Manufacturers here in the United States
• Quality Control: All barrels are manufactured under ISO-9001 or better quality standards
• MOA Guarantee: All barrels 16 and longer are guaranteed to hold 1 MOA or better when used with properly weighted match-grade factory ammo and shooting from a rest.
• Best Value for the Money

Why Choose Dirty Bird Industries?

At Dirty Bird Industries, we’re proud to be your trusted source for high-quality firearm parts and accessories. As a family-owned and operated business, we prioritize relationships, customer satisfaction, and the values that keep our community strong.

Here’s why thousands of firearm enthusiasts choose us:

• Quality You Can Trust: Every product we offer is carefully selected to meet the highest performance, reliability, and craftsmanship standards. We deliver excellence in every order, from AR-15 parts to complete rifle kits.
• Attentive, Personalized Service: Our knowledgeable and passionate team is here to help you find the perfect products for your needs. Whether you’re a seasoned builder or a first-time buyer, we’re committed to making your experience smooth and hassle-free.
• Low Price Guarantee: Get the best products at unbeatable prices. We’re so confident in our pricing that we offer a low-price guarantee—ensuring you get the most value for your hard-earned money.
• 30-day Satisfaction Guarantee: Shop with confidence, knowing our 30-day satisfaction policy covers you. If you’re not happy, we’ll make it right—no questions asked.

Choose Dirty Bird Industries for unbeatable value, premium products, and service that treats you like family. Elevate your next build with us today!

*FSB is F-Marked
*Front sight post, detent, and spring are not included.