‏BRN-180 features

The BRN-180 10.5″ rifle by Brownells is packed with innovative features that make it a standout in the firearms market. Here are some of the key features, along with visual details to help illustrate their benefits:

Key Features of the Brownells BRN-180 10-Inch Rifle

The Brownells BRN-180 10-inch rifle is a modern take on the classic AR-180 design, incorporating several advanced features that make it a standout choice for enthusiasts and professionals alike. Here are some of its key features:

1. Short-Stroke Gas Piston System

The BRN-180 utilizes a short-stroke gas piston system, which enhances reliability and reduces fouling compared to traditional direct impingement systems. This design ensures consistent performance even in adverse conditions.

—

2. Adjustable Gas Block

An adjustable gas block allows users to fine-tune the gas flow, making it easier to optimize the rifle for different types of ammunition and suppressor use. This feature provides greater control over the rifle’s operation and recoil management.

—

3. No Buffer Tube Required

One of the standout features of the BRN-180 is its ability to function without a buffer tube. This allows for the use of folding stocks, making the rifle more compact and easier to transport. It can even be fired with the stock folded.

—

4. Compatibility with AR-15 Lowers

The BRN-180 upper receiver is designed to be compatible with any mil-spec AR-15 lower receiver. This flexibility allows users to customize their rifle with a wide range of aftermarket parts and accessories.

—

5. Picatinny/M-LOK Handguard

The rifle features a rock-solid Picatinny/M-LOK handguard that can be easily detached by removing a single screw. This design provides a stable platform for mounting optics, lights, and other accessories.

—

6. High-Quality Barrel

The 10-inch barrel is button-rifled with a 1:8 twist rate, ensuring excellent accuracy and performance. The barrel is available in various calibers, including .223 Wylde, .300 Blackout, and 7.62x39mm.

—

7. AR-180 Style Flash Hider

The rifle comes equipped with an AR-180 style 3-prong flash hider, which effectively reduces muzzle flash and helps maintain a clear sight picture during rapid fire.

—

8. Durable Construction

The BRN-180 is built to last, with high-quality materials and a robust design that can withstand heavy use. The anodized black finish adds an extra layer of protection against wear and corrosion.
The Brownells BRN-180 10-inch rifle combines classic design elements with modern innovations, making it a versatile and reliable choice for a wide range of shooting applications.

Reliability BRN 180

This graph shows the reliability of the BRN-180’s short-stroke gas piston system compared to traditional direct impingement systems.

Muzzle Flash Reduction

![Muzzle Flash Reduction]

²: [The Brownells BRN-180: A Complete Look Inside and Out](https://kurtthegunsmith.com

By BROWNELLS

Brownells BRN-180

brn180 for sale

Brownells BRN-180 Semi-automatic Rifle one of the country’s top shooting-components providers, has been a longtime supporter of this country’s enthusiasm for AR-pattern rifles.

When I built a direct gas-impingement operated AR-15 at home for the first time a few years ago, this company proved to be an invaluable source of tools and information for the first-time builder and more experienced at-home hobbyists.

Although I have yet to find any reason to complain about the performance or reliability of the well-made direct-impingement platforms I’ve worked with, plenty of folks are devoted to ARs that use short-stroke gas-piston systems to cycle the action.

Semi Automatic Brownells BRN-180 Rifle Gen2

They run much more cleanly, since exhaust from the cartridge is not being blown back into the action. They also don’t heat up as quickly, for the same reason. However, piston guns do tend to cost more and generally don’t print quite as tight of groups as impingement-operated guns.

The debate over which is the better action type for an AR will continue. Rather than just watch from the sidelines, I opted to get into the game by building a piston driven AR in order to see the differences for myself. Once again, thanks to new-products released last year and this year, Brownells has made building a piston AR just as easy as an impingement model. BUY a our COMGPLETE BUILD HERE!

brn 180 – Gun barrel

brownells brn-180 rifle Gen2

Brownells BRN180 For sale could have gone in a variety of directions to develop in-house piston driven options for their customers. In 2019, it opted to go the retro route with the launch of the 5.56 NATO/.223 Rem. BRN-180 series of factory complete AR-15 uppers inspired by Eugene Stoner’s AR-18/180.

As a scaled-down version of the AR-16, the AR-180 sported a piston system that was ahead of its time. However, other features and factors in play at the time kept these rifles from being adopted by the military or picking up much steam in the civilian market.

Rather than try to replicate the AR-180’s stamped-and-welded steel receiver, the BRN-180 uppers are assembled around milled billet 7075-T6 aluminum upper receivers, which are compatible with mil-spec AR-15 lowers and typical AR-15 STANAG magazines. This gives customers the option of snapping this upper into a lower they already have or using it as the starting point for a simplified at-home build.

The Brownell’s BRN-180S Gen2 upper

The flattop upper receiver has more of a square profile than the typical AR-15 along with an integral Picatinny optics rail. On the left side of the receiver is a cut out to accommodate the bolt catch and a small round rubber bumper to protect the finish if a folding stock is installed.

On the right side of the upper receiver is a modified polymer dust cover fitted to the ejection port, but a the familiar AR-15 forward assist is absent. The top mounted non-reciprocating charging handle has been replaced with an AR-180 type reciprocating bolt handle which protrudes from the ejection port.

brownells brn-180 rifle Gen2

Within the upper receiver, a rotating multi-lug bolt is fitted into a block-shaped carrier supported by dual recoil assemblies. The recoil rods are mounted to a removable aluminum cap that’s held in place by the lower receiver. This means the recoil assembly is fully contained within the upper assembly with no need for a spring or buffer to be installed in the shoulder stock.

ar 180 for sale

The BRN-180 upper ships with a 4150 steel, button-rifled barrel with a black-nitride finish and a .223 Wylde chamber. The upper is currently available in three barrel lengths including 10.5″ pistol, 16″ carbine and 18.5″ rifle options.

brownells brn-180 rifle

I opted to work with the 18.5″ rifle barrel with a 1:8″ twist rate and a factory-installed replica of the AR-180’s three-prong flash hider. The 14″ long aluminum handguard free-floats the barrel, has a full-length optics rail on top and M-LOK accessory slots cut throughout.

The handguard is secured to the barrel block by a U-latch. Removing this latch allows the handguard to slide off in order to provide access to the gas-piston system. The piston system’s design is lifted straight from the AR-180 with some modifications to the spring, materials and finish to bring it up to modern production standards. The upper arrives with a standard piston cup installed, and a second cup for sound suppressors is provided.