BRN-180® Upper Receiver Group Gen2 – Reliable Piston System Made Even More Versatile Designed in conjunction with PWS & FM Products, the Brownells BRN-180® Complete Upper Receiver is inspired by the Armalite® AR-180 of the 1960s. Developed as a successor to the original AR-15, the AR-180 was a civilianized version of the AR-18, itself an upgrade on the M16 platform. The BRN-180® incorporates many of the AR-18/AR-180 improvements - including its robust and reliable gas piston operating system. (Yes, the originators of the AR-15 / M16 eventually embraced a piston!) 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, 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. Wait - we know what you're dying to ask. Yes, the BRN-180® upper receiver is fully compatible with any standard, mil-spec AR-15 lower receiver. The 16" or 18.5” barrel is machined from extra-strong 4150 carbon steel, with a hard Nitride finish that really resists surface wear. The BRN-180™ is chambered in .223 Wylde - for extra flexibility in ammo choice - with 1-8" rifling, so it handles both .223 Remington and military-type 5.56mm NATO ammo with equal aplomb. 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 ½-28 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 16" or 18.5” barrel with matte black Nitride finish .223 Wylde chamber Button rifled bore; 1-8" twist ½"-28 threaded muzzle Replica 3-prong AR-180 flash suppressor Molded polymer ejection port cover Total weight: 4.65 lbs We recommend the use of C-Products Duramag and/or Unimag for best results in our 7.62x39 variant.
BRN-180® Gen 2 : La performance à portée de main
Le BRN-180® Upper Receiver Group Gen2 est un système à piston fiable, conçu pour être encore plus polyvalent. Inspiré par l'Armalite® AR-180 des années 1960, le BRN-180® est le successeur moderne de l'AR-15. Il intègre de nombreuses améliorations de l'AR-18/AR-180, y compris un système d'exploitation à piston robuste et fiable.
Améliorations clés
- Système de gaz ajustable : Tous les Upper Receivers BRN-180® sont maintenant équipés d'un système de gaz ajustable, permettant de choisir entre deux réglages selon les conditions et les munitions.
- Fixation du garde-main : Le garde-main est maintenant maintenu par une seule vis de verrouillage, offrant une force de verrouillage supérieure et une meilleure stabilité.
- Compatibilité : Le upper receiver BRN-180® est entièrement compatible avec tout lower receiver AR-15 standard, mil-spec.
Caractéristiques techniques
- Barrel de 16" ou 18.5" en acier carbone 4150 avec finition Nitride dur.
- Chambre .223 Wylde pour une flexibilité accrue dans le choix des munitions.
- Filetage de bouche ½"-28 pour une personnalisation facile.
- Poids total : 4.65 lbs.
Le BRN-180® est conçu pour offrir une expérience de tir fluide et fiable, que ce soit pour le tir sur cible ou pour d'autres applications. Avec son système à piston ultra-fiable et sa construction en aluminium 7075 T6, c'est un choix idéal pour les passionnés d'armes à feu.
Nous recommandons l'utilisation de C-Products Duramag et/ou Unimag pour obtenir les meilleurs résultats dans notre variante 7.62x39.
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