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Questions & Answers
Does this upper fit on a Bushmaster lower XM15-S2?

It fits all mil spec lower receivers. If you have any cycle issues just swap out buffer for h3 heavy buffer.

by One eye jack, Verified Owner, May 26, 2025
Customer Reviews
Helpful Positive Review Bushmaster Zulu by Sebastian Delgadillo, Verified Owner, September 15, 2024
A little loose fitting but you won't be disappointed. It feels high quality and made in USA.
1/2 found this helpful
Read 1 Review
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Product Info for Bushmaster Bravo Zulu Upper Assembly

Introducing the Bravo Zulu Upper Assembly, a high-quality and reliable option for your next AR-15 build. This upper assembly features an barrel made from 4150 CMV steel, finished with a Salt Bath Nitride treatment for improved durability and corrosion resistance. The barrel boasts a twist rate of 1:7, making it ideal for a wide range of ammunition types.image

At just 3.6 pounds, this upper assembly is lightweight and easy to handle, without sacrificing performance. The mid-length gas system ensures reliable operation and reduces felt recoil, while the 7075 Forged A4 Flat Top Upper Receiver provides a solid and stable platform for your optics and accessories.

The Bravo Zulu Upper Assembly also comes equipped with a 10 in  BFI M-LOK Handguard, offering plenty of space for mounting accessories and maintaining a low profile. The Snake Charmer Muzzle Brake helps to reduce muzzle rise and improve overall accuracy, while the Mil-Spec Charging Handle and Complete BCG (Bolt Carrier Group) provide smooth and reliable operation.

WARNING: California`s Proposition 65

Specifications for Bushmaster Bravo Zulu Upper Assembly:

Manufacturer: Bushmaster
Threads per Inch: 11/16x24
Muzzle Device: Snake Charmer Muzzle Brake
Finish: Black Nitride
Color: Black
Fabric/Material: 7075 Aluminum
Gun Type: Rifle
Gun Make: AR Platform
Bolt Carrier Group Included: MIL-SPEC
Magazine Included: No

Features of Bushmaster Bravo Zulu Upper Assembly

  • Upper Receiver
  • 7075 Forged A4 Flat Top Upper Receiver Handguard
  • Snake Charmer Muzzle Brake Charging Handle
  • 8620 Steel SBN Bolt
  • Bolt 9310 MPI Tested

Package Contents:

  • Bushmaster Bravo Zulu Upper Assembly

Bushmaster Bravo Zulu Upper Assembly Orderable Models

List of Orderable Models

Bushmaster Bravo Zulu Upper Assembly, 16in, 5.56 NATO/.223 Remington, Black, 00-40011-BLK , MPN: 00-40011-BLK , UPC: 604206200747 , Code: 6C5-URC-BZ20U-00-40011-BLK
Bushmaster Bravo Zulu Upper Assembly, 20in, 450BM, Black, 00-40009-BLK , MPN: 00-40009-BLK , UPC: 604206200761 , Code: 6C5-URC-BZ20U-00-40009-BLK
Bushmaster Bravo Zulu Upper Assembly, 16in, 450BM, Black, 00-40010-BLK , MPN: 00-40010-BLK , UPC: 604206200549 , Code: 6C5-URC-BZ20U-00-40010-BLK
Bushmaster Bravo Zulu Upper Assembly, 11.5in, 5.56 NATO/.223 Remington, Black, 00-49002-BLK , MPN: 00-49002-BLK , UPC: 604206200945 , Code: 6C5-URC-BZ20U-00-49002-BLK
Bushmaster Bravo Zulu Upper Assembly, 16in, 350LGND, Black, 00-40016-BLK , MPN: 00-40016-BLK , UPC: 604206200754 , Code: 6C5-URC-BZ20U-00-40016-BLK
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