Daily Gun Deal: Brownells BRN-180S AR-15 300 BLK Complete Upper

Daily Gun Deal: Brownells BRN-180S AR-15 300 BLK Complete Upper
Daily Gun Deal: Brownells BRN-180S AR-15 300 BLK Complete Upper

U.S.A.-(AmmoLand.com)- Brownells has released its groundbreaking BRN-180 upper now chambered in 300 Blackout! The new BRN-180s upper chambered in 300 BLK is the perfect choice for a suppressed AR-15 style pistol or short-barreled upper.

Gun Deal: Brownells BRN-180s AR-15 300BLK Complete Upper

Buy Now Gun DealsBRN-180S™ Gen2 – Now with 300 Blackout Configuration! Designed in conjunction with PWS & FM Products, the Brownells BRN-180S™ Complete Upper Receiver is the newest iteration of the BRN-180™ Upper Receiver, which was inspired by the Armalite® AR-180 of the 1960s. The BRN-180S™ shares a large chunk of components with the BRN-180™, but introduces key features to improve reliability and usability in a short configuration. The BRN-180S™ is obviously shorter than the standard BRN-180™. The 300 Blackout required a shorter system to ensure reliability with a wide variety of supersonic and subsonic ammunition. This resulting shorter system also required a cutout in the handguard to access the two-position adjustment. The user can select between these two settings to find the most reliable configuration with their ammo and suppressor.

The BRN-180™ Gen2 Upper Receiver Group improves upon the original BRN-180™ with two main upgrades. First, all BRN-180™ Upper Receivers now ship with an Adjustable Gas System, previously only found on the BRN-180S™. The operating mechanism, the short stroke gas piston concept remains the same, but the user can select between two settings, depending on their conditions and ammunition, to ensure smooth and consistent function. No more spare gas piston cup to worry about. In addition to the new Adjustable Gas System, the Handguard is now retaining with a single locking screw. This large screw provides ample locking force and ensures a more consistent handguard lockup than the previous mechanism. During extended firing, and the barrel heating up, this new locking system ensures the handguard retains alignment and rigidity with the upper receiver. Also, with this new takedown mechanism, the handguard can be removed to access the gas system without removing the internal components.

Like the original AR-180, the BRN-180™ bolt carrier rides smoothly on a PAIR of guide rods. The carrier is buffered at the rear by a built-in polymer buffer with a molded-in steel plate that captures the guide rods. The Nitride bolt replicates the original AR-180 bolt design, right down to its use of a standard AR-15 extractor. The barrel is machined from extra-strong 4150 carbon steel, with a hard Nitride finish that really resists surface wear. The 300 Blackout BRN-180™ also features a 1-8 twist for a wide variety of ammo usage. Up front there’s a replica of the AR-180’s unusual three-prong flash hider: the hemispherical bottom prong helps prevent the muzzle blast from kicking up a dust signature when shooting prone. Standard 5/8-24 tpi muzzle threads let you swap on a modern AR-15 muzzle device should you be bitten by the customizing bug.

  • Ultra-reliable AR-180™ piston operating system
  • Compatible with current mil-spec AR-15 lowers
  • Machined 7075 T6 aluminum receiver & handguard – hardcoat anodized finish
  • 10” on 300 Blackout with matte black Nitride finish
  • 300 AAC Blackout chamber
  • Button rifled bore; 1-8″” twist 300 Blackout
  • 5/8-24 for 300 Blackout
  • Replica 3-prong AR-180™ flash suppressor
  • Molded polymer ejection port cover
  • Total weight: 4 lbs

Gun Deal: Brownells BRN-180S AR-15 300 BLK Complete Upper

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What the heck, this isn’t a gun deal – it was literally announced today! This is more of an announcement that it is available.



Deplorable Bill

A really good upper and I would own one except it’s priced $400 more than it’s worth.

Arm up, carry on


I agree with you sir, i say its 500 more than its worth, piston with gas adjustments noooooo thank you, have you had any contact or seen any postings from wild bill lately?


Wow, I was the very first person to comment and made the same point(s) and, surprisingly (or not) my comment disappeared!


I’ve been waiting for a BRN-180 in .300 Blackout, but $900? Forget it.

Ryben Flynn

Do I suspect price gouging? NAH! Couldn’t be.


Gun “deal”, yeah…. Riiiight, NOT !


This price should get you damn near TWO of these !