VN-MUR: VULCAN Modular Upper Receiver



VN-MUR: VULCAN Modular Upper Receiver

VN-MUR: VULCAN Modular Upper Receiver

From: $139.95
Was: From: $179.95

The MUR is a rigid Mil-Spec flat-top upper made to fit all AR15/M16 M4 rifles and carbines. The MUR was developed to give the customer a Mil-Spec correct upper receiver with a thicker wall, making the MUR upper receiver a stronger platform. This more rigid upper receiver will increase accuracy and reliability, while extending the life of the interfacing components.

*Note- this product is part of our VULCAN line of items. This includes factory second, blemished items, and limited edition items. Please read our VULCAN policies completely before ordering. By placing an order you agree that you have read and understand these policies.*

Clear Selection
  • Aircraft-grade aluminum construction
  • 7075 Forging
  • Stress relieved, heat treated, aged twice and cryogenic treated
  • Hard coat anodized, black per MIL-A-8625 TYPE III Class 2
  • Precision machined and finished by hand
  • Bore coated with dry film lube over the anodized surface
  • Compatible with all Mil-Spec AR-15 parts and accessories
  • Available with (MUR-1A) or without forward assist (MUR-1S)
  • M4 feed ramps

  • Weight: MUR-1A- 9.80 oz , MUR-1S- 8.70 oz
  • Length: 7.657 inches
  • Height overall: 2.121 inches

1. What kind of mounting block should I use?

We recommend that you use the Geissele Reaction Rod for installation. Damage could incur if you use clamp style mounting blocks or blocks that do not support the upper internally. This could void your warranty.

2. How do you remove the forward assist to install a custom dust cover?

Due to our Lifetime Warranty, we advise that you not remove or attempt to remove your forward assist. Our Lifetime Warranty covers all of our products as long as they are not modified in any way (i.e. disassembly, Cerakote, painted, Durakote, etc.). We do offer a service in house that will maintain your Lifetime Warranty. Please contact us to arrange this service.

3. Is your upper forged or billet?

All of our uppers are made from forgings.

4. Do you make a MUR that is compatible with .308?

We do not current have a .308 compatible MUR available; however, our Research and Development team is exploring this area.

5. What type of coating is applied to the MUR-1A-T Tan MUR? 

We use KG Industries GunKote FDE on these uppers.


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