VULCAN MUR: Modular Upper Receiver



VN-MUR: VULCAN Modular Upper Receiver

VULCAN MUR: Modular Upper Receiver
(1 customer review)

From: $158.36
Was: From: $197.95

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.


Customer Reviews

1 review for VULCAN MUR: Modular Upper Receiver

  1. Dale.crawford (verified owner)

    Quality upper like always. Cerakote seemed to add quite a bit of material though. Had to sand some off to seat the barrel fully. Very tight squeeze fitting it to the lower as well. Not quite out of spec but definitely pushing the limits of tolerance.

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