Brownells.com has stood as a cornerstone in the American firearms community. This iconic brand has evolved from a family-run gunsmith supply business into a comprehensive e-commerce powerhouse that serves shooters, gunsmiths, hobbyists, and professionals across the nation. Whether you're building your first AR-15, tuning a competition pistol, or restoring a classic rifle, Brownells delivers the tools, components, and knowledge you need—all in one place.
Brownells is known not only for its wide product range but also for its commitment to quality, trust, and Second Amendment values. From seasoned experts to weekend range-goers, the site is a go-to resource for millions seeking dependable parts, expert guidance, and top-tier firearm gear.
Platform for Gun Parts, Ammo, Tools, and More
Unlike many firearm retailers that focus solely on complete weapons, Brownells.com offers an unmatched selection of gun parts, tools, and DIY kits, making it a goldmine for gunsmiths and builders. Whether you're upgrading a trigger, swapping barrels, or customizing your optics setup, Brownells gives you access to components from top-tier brands like Geissele, Aero Precision, BCM, and Magpul.
The site's intuitive categories—covering everything from handguards and bolts to springs and pins—make it easy to find exactly what you need. Plus, their expansive line of gunsmithing tools ensures precision in every step of your project. From reamers and gauges to torque wrenches and vise blocks, the platform empowers users to handle their builds like professionals.
BRN-180 Gen 2 Upper Receiver

One of Brownells’ most talked-about offerings is the BRN-180 Gen 2 Upper Receiver, a modern twist on the classic Armalite AR-180 design. Compatible with standard AR-15 lowers, this upper features a monolithic aluminum handguard, short-stroke gas piston system, and an adjustable gas block for smooth, reliable function—even with suppressors.
Perfect for both tactical builds and collectors who appreciate historical homage, the BRN-180 Gen 2 brings robust performance and innovation in a sleek, side-charging package. It’s ideal for anyone looking for a cleaner-running alternative to direct impingement systems, and its folding stock compatibility makes it popular for compact, mobile configurations.
Brownells and the Rise of DIY Gun Building Culture
In recent years, Brownells has emerged as a leading advocate for the home-build and DIY gun culture, thanks to their wide array of 80% lowers, jigs, and completion kits. They provide not just the parts, but also the educational content and support that empower firearm owners to legally build and customize their own guns from scratch.
With instructional videos, how-to guides, and product recommendations available directly on the site, Brownells positions itself as more than a retailer—it’s a full-service destination for gun building and restoration. This has made the site incredibly popular among hobbyists who want to control every aspect of their firearm’s performance and aesthetic.
Brownells M16 BCG (Bolt Carrier Group)

The Brownells M16 Bolt Carrier Group is another best-selling product that highlights the company’s dedication to quality and reliability. Made from 8620 steel with a properly staked gas key and chrome-lined interior, this BCG meets or exceeds military specifications. It’s also magnetic particle inspected (MPI) to ensure strength and safety under high-stress conditions.
Ideal for both casual shooters and those building duty or defensive rifles, this bolt carrier group provides rock-solid performance with a price tag that beats many boutique alternatives. Whether you're assembling your first rifle or replacing worn parts, this BCG delivers function, durability, and peace of mind.
Brownells Edge Membership: Premium Perks for Frequent Shoppers
Understanding the value of loyalty, Brownells offers the “Edge” membership program, a premium service for serious firearms enthusiasts. Members get free two-day shipping on all Edge-eligible products, exclusive discounts, and early access to special promotions.
This subscription model adds value for customers who frequently order parts or supplies, allowing them to save significantly over time. With fast delivery and priority customer support, Edge is ideal for competitive shooters, instructors, and professional gunsmiths who rely on consistent, timely access to parts and tools.
Brownells Retro Rifles

Brownells doesn’t just cater to modern tactical trends—it also pays tribute to firearm history with its Retro Rifle line. These rifles, such as the BRN-601 and XBRN16E1, are faithful reproductions of Vietnam-era AR-15 and M16 configurations. Using period-correct furniture, profiles, and markings, these firearms appeal to collectors and reenactors alike.
Every retro rifle is built using high-quality modern materials while staying true to the original designs. For shooters with a passion for military history or vintage firearms, Brownells’ retro lineup is a unique and fully functional homage to the past.
Customer Support, Warranty, and Commitment to Gun Owners
A major part of Brownells’ success lies in its customer-first approach, with a legendary satisfaction guarantee that lets users return products—even after use—if they're not completely satisfied. Their knowledgeable support team, made up of gun enthusiasts and professionals, offers real guidance on product compatibility, installation, and performance.
In addition, Brownells has always been a strong advocate for the Second Amendment, frequently partnering with firearm rights organizations and offering resources to help buyers stay informed about legislative changes that impact gun ownership and DIY builds.
Brownells.com is More Than a Store—It’s a Firearms Institution
With its rich history, expansive catalog, and unwavering commitment to quality and education, Brownells.com is more than a retailer—it’s a pillar of the firearms industry. Whether you're an experienced gunsmith, a new gun owner looking to learn, or a tactical operator sourcing high-performance parts, Brownells offers the trust, tools, and technical support you need.
From top-tier products like the BRN-180 and M16 BCG to the unique Retro Rifle series, Brownells has positioned itself as the ultimate destination for those who take their Second Amendment rights seriously—and want to build, maintain, or upgrade their firearms with confidence and expertise.