Brownells Uppers Gun Parts
(8 deals total)

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8 hours ago
100-039-917WB BRN-180™ 16" Complete Upper w/ Vortex Sparc II Red Dot Cartridge: 223 Wylde Finish: Black Style: Complete Length: 16" Muzzle: 1/2-28 Twist: 1-8 Description
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Brownells 2484
1 day ago
078-000-483WB BRN-180™ AR-15 16" 223 Wylde Upper Receiver Assembly Cartridge: 223 Wylde Finish: Black Style: Complete Length: 16 Muzzle: 1/2-28 Twist: 1-8 Description Specs Retro? Or Cutting Edge? An Innovative 1960s Design That's Totally Up To Date
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1 day ago
078-000-537WB BRN-180S AR-15 10.5" 223 Wylde Upper Receiver Assembly Cartridge: 223 Wylde Finish: Black Style: Complete Length: 10.5 Muzzle: 1/2-28 Twist: 1-8 Description Specs 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.
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4 days ago
078-000-543WB BRN-10® Upper Receiver Cartridge: 308 Winchester Finish: Black Description Specs The BRN-10 Upper Receiver is now yours to build off of!
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6 months ago
Description Specs A Solid Foundation for Your Next Custom Build Sometimes you want the latest, updated, tweaked component, and sometimes you need a basic stripped receiver where the production effort goes into quality, rather than bells and whistles. The Brownells M4 Stripped Upper Receiver is that component - the perfect starting point for many an AR-15 build.
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Brownells 13521
12 months ago
078-000-446WB Blemished BRN-16A1 M16A1 Upper Receiver Cartridge: 5.56 mm NATO Style: Stripped Description Specs Get a Great AR Receiver for a Bargain Price Due to Brownells' extraordinarily high quality standards, some of the AR-15 upper receivers produced for the company's line of BRN-16A1 retro rifles aren't up to spec. However, these Brownells Blemished M16 A1 upper receivers are still solid, quality components for AR fans looking for a bargain for their next AR build.
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Brownells 1455
36 months ago
This Brownells’ exclusive Complete AR Upper Receiver is Made in the USA. Chambered in 5.56x45mm NATO and featuring a 16” barrel with a 1:8 twist. The standard A3 13-slot aluminum flat top receiver comes with a 10” handguard utilizing the KeyMod rail system. A low profile gas block, bolt carrier group, charging handle, forward assist, ejection port cover and phosphate finish help to complete this outstanding package. This complete A3 upper receiver will attach to almost any standard AR-15 lower receiver.
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Brownells 1643
40 months ago
Standard Mil-Spec flat top upper receiver. Features M4 feedramps. Machined from 7075-T6 forgings. Hard coat anodized with a teflon coating in a matte black finish. 100-022-577WB AR-15 Stripped Upper Receiver Black Cartridge: 5.56 mm NATO Finish: Black Style: Stripped
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Brownells 485