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BRN-180S 10,5 tums upper i .223
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BRN-180S 10,5 tums upper i .223
Brownells egenutveckling av AR-18 plattformen. En av de stora fördelarna med BRN 180S är att man slipper bufferten jämfört med AR-15, vilket minskar vikten på de rörliga delarna och därmed rekylimpulsen. Se relaterad produkt för versionen i .300 Blackout samt för längre versioner i 223.
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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 223 Wylde version comes with a 10.5” barrel configuration. The free float M-LOK handguard mated to the assembly is also shorter, terminating just in front the gas block. 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 223 Wylde BRN-180™ chamber allows 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 on the 223 Wylde 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
- 10.5" barrel on 223 Wylde with matte black Nitride finish
- .223 Wylde chamber
- Button rifled bore; 1-8" twist for both the 223 Wylde
- ½"-28 threaded muzzle for 223 Wylde
- Replica 3-prong AR-180 flash suppressor
- Molded polymer ejection port cover
- Total weight: 4 lbs