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Bearing Delay Upper Receiver

MEAN Bearing Delay Upper Receiver
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Mean

The Bearing Delay Upper Receiver is a complete upper receiver system ready to be paired with the AR lower receiver of your choice. Available in 5 different barrel lengths: 4.5″, 7.5″, 11″, 14.5″, 16″ – all threaded for a 1/2-28 muzzle device. No 9mm-specific buffer needed. The Bearing Delay Upper Receiver is designed to work with standard AR-15 buffers.

The heart of the Bearing Delay Upper Receiver is the unique ball bearing bolt carrier group (BCG). The ball bearings interface with corresponding features in the barrel extension and provide the lockup in battery and the delay after firing. The system can be tuned by replacing the Lifter to change the angle of the surfaces that push the bearings from the inside of the BCG.

SPECIFICS

Key Features
  • Bearing Delay™ system (ball bearing BCG)
  • Tunable system μέσω Lifters
  • Low recoil & high durability
  • Compatible with standard AR-15 buffers
  • Works με Endomags & pistol lowers
  • Free float hybrid handguard
  • Ambidextrous charging handle
  • Lifetime warranty
System & Components
  • Upper Receiver (billet, milspec, slick side)
  • Bolt Carrier Group (BCG) (ball bearing system, center ejector)
  • Barrel & Extension (bearing interface, threaded 1/2-28)
  • Handguard (free float hybrid polymer + metal insert)
  • Charging Handle (ambidextrous)
  • Muzzle Device (recoil & flash reduction)
Compatibility & Notes
  • Compatible with AR-15 lowers (milspec)
  • Compatible with MEAN Arms Endomags (ejectorless)
  • Some pistol lowers require ejector removal
  • Includes 2 Lifters (tuning)
  • Includes 2 Endomags
  • NFA rules apply (<16” barrels)
  • Lifetime warranty & maintenance
Maul Bearing Delay Upper Receiver