Geissele Super Duty AR-15 Barreled Upper Receiver 5.56 Mid-Length – 40mm Green – No Muzzle Device – 16″


  • Forged 7075-T6 aluminum receiver
  • 40mm Green Finish
  • Black Oxide barrel
  • 16” cold hammer forged barrel
  • Chambered in 5.56 with a mid-length gas system
  • Threaded 1/2×28
  • 15” SMR MK16 free float M-LOK handguard


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SKU08-247-40G Category

This upper receiver features a 16″ cold hammer forged chrome lined barrel with a mid-length gas system for superior performance. The barrel also boasts a black oxide coating for added durability. Additionally, this receiver comes with a 15″ SMR MK16 free float handguard with M-LOK attachment slots on 7 sides, allowing you to customize your set up to your specific needs. The unique 40mm Green finish rounds out this already incredible package, giving it an eye-catching look that is sure to turn heads.

This AR-15 barreled upper receiver group does not come with a bolt carrier group or charging handle.


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