Back to old site

If there is anything in your cart, it will not be brought over to the old site.

430110018_1W.jpg
430110018_20W.jpg
430110018_5W.jpg
430110018_35W.jpg
430110018_10W.jpg
430110018_30W.jpg
430110018_25W.jpg
430110018_15W.jpg
430110018_1W.jpg
430110019_1W.jpg
430110019_15W.jpg
430110019_35W.jpg
430110019_40W.jpg
430110019_30W.jpg
430110019_5W.jpg
430110019_20W.jpg
430110019_25W.jpg
430110019_10W.jpg
430110018_1W.jpg
430110018_20W.jpg
430110018_5W.jpg
430110018_35W.jpg
430110018_10W.jpg
430110018_30W.jpg
430110018_25W.jpg
430110018_15W.jpg
430110018_1W.jpg
430110019_1W.jpg
430110019_15W.jpg
430110019_35W.jpg
430110019_40W.jpg
430110019_30W.jpg
430110019_5W.jpg
430110019_20W.jpg
430110019_25W.jpg
430110019_10W.jpg
None
Sale Sale OFF

BROWNELLS BRN-180S UPPER RECEIVERS WITH PIN & WELD FLASH HIDER

Barrel Length
Brownells #
MFR #
UPC
$899.99 $999.99
Coupon Code
Purchase Limit Help

In stock

Can we ship this to you?
{{restriction.odmShipCheckMessage}}
Specifications

Please select from the options above to see detailed specifications.

Restriction

Please select from the options above to see detailed restrictions.

Can we ship this to you?
{{restriction.odmShipCheckMessage}}
Description

LIMITED PRODUCTION RUN! Get the Shortest-Possible BRN-180® Without Having To Register It As an SBR

This special, limited-production model of our popular BRN-180S® complete upper receiver comes with a premium Primary Weapon Systems FRC Rearden flash hider permanently pinned and welded onto the barrel to meet the National Firearms Act's (NFA) requirement for a minimum 16" barrel length. This gives you the shortest-possible barrel without having to apply to the ATF (and pay $200) to register your rifle as an SBR. You actually get TWO benefits because this PWS flash hider also serves as a quick-attach mount for sound suppressors that use the Rearden, Atlas, and Plan B mounting interfaces.

Designed in conjunction with Primary Weapons and Foxtrot Mike, the Brownells BRN-180S® Complete Upper Receiver is part of our extensive BRN-180® line of AR-15 compatible gas piston uppers, which was inspired by the highly advanced Armalite® AR-18 / AR-180 rifles of the 1960s. The BRN-180S® shares a large chunk of its components with the standard BRN-180® upper, but it includes key features to improve reliability and usability with a shorter barrel.

The BRN-180S's adjustable gas block can be switched between two settings, simply by flipping a small lever: "S" is for use with a sound suppressor, "U" for normal, unsuppressed fire. The lever is easy to access through a convenient cutout in the handguard.

With an entirely self-contained recoil system, the BRN-180S® can be mounted to a standard "mil-spec" AR-15 lower receiver without a buffer tube. This enables easy compatibility with folding stocks and adapters for stocks that mount to M1913 Picatinny rails. The recoil guide rods and buffer easily are easily removed when the upper receiver is separated from the lower. The bolt and carrier slide out when you remove the charging handle at the rear. A large ejection port gives you easy access for cleaning. We also offer dedicated BRN-180 Lower Receivers that come with an integral Picatinny stock attachment rail.

The lightweight-profile barrel is almost entirely encased by the slim M-LOK® handguard, making for an extremely lightweight package, even with the piston-driven operating system. The full-length Picatinny top rail sits extremely low compared to other piston-operated AR-15s, giving you the benefit of broad compatibility with common AR-15 height optic mounts and sights. This barrel features a .223 Wylde chamber that is optimized to deliver excellent performance from the broadest spectrum of .223 Remington and 5.56x45mm NATO ammunition.

The free-floating M-LOK® handguard can be removed simply by taking out one large screw located on the underside of the receiver. This screw engages the rear of the barrel, pulling the handguard tight up against the receiver, making the handguard an extremely strong, stable optic and accessory mounting platform that won't whip, wobble, or rotate. At the same time, this handguard is very easy to remove for quick access to the BRN-180® gas system.

These BRN-180S® pinned-and-welded uppers feature:

• Ultra-reliable piston operating system

• Choice of 13.9" or 14.5" Nitride finished barrel

• Pinned-and-welded Primary Weapons Systems flash hider

• Compatibility with current mil-spec AR-15 lowers

• Machined 7075 T6 aluminum receiver & handguard with hardcoat anodized finish

• Versatile .223 Wylde chamber optimized for both .223 Rem & 5.56 NATO ammo

• Button rifled bore

• 1-8" rifling stabilizes a broad variety of bullet weights

• ½"-28 threaded muzzle

• Molded polymer ejection port cover

• All NFA rules apply

CAUTION: User removal of the trunnion, barrel, and trunnion screws is not recommended. Removal of the trunnion screws will void our Forever Guarantee.

NOTE: All BRN-180® Upper Receiver Assemblies are test fired before final packaging. Your upper may display signs of firing, such as light carbon fouling inside.

Available options: 
430110018 430110019
Please select a FFL Dealer

or
7 dealers near
Distance:
10miles
arrow-down
Sort by:
Nearest first
arrow-down
pin wrong
No dealers found

Please search by another zipcode to find the nearest dealer.

Close
Brownells Retail Store
Pin in
Clock
You must select required check box

Note:

Listed hours & fees are not guaranteed and subject to change. Please contact the dealer to confirm current hours & fees.
* Must accept required fields.
  • Pin in Brownells Featured Dealers

    Choosing a Brownells Featured Dealer is the fastest and easiest way to complete your purchase. Brownells Featured Dealers have agreed to perform FFL transfers on guns purchased online from Brownells. We have their necessary FFL information on file and your FFL order will ship directly to them once processed.

  • Pin in Standard Dealers

    Standard Dealers have not yet agreed to perform FFL transfers on guns purchased online from Brownells. If you choose a Standard Dealer, you are responsible for contacting that dealer and arranging for the dealer to submit a signed copy of an FFL and to give Brownells permission to ship the gun.

  • Pin in Not Available Dealers

    Not Available Dealers are dealers Brownells cannot ship guns to at this time. These dealers either do not meet our requirements for FFL transfers, or prefer to not perform transfers for guns purchased online from Brownells.

Switch view map
7 dealers near

You May Also Like

Right Badge OFF  
5 Stars

200

300

Customers Also Viewed

Right Badge OFF  
5 Stars

200

300