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Price: $815.56
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  • NEW Gen2 Gideon Shadow Barreled Upper Receiver series
  • New manufactured parts by Omega
  • The Omega Gen2 comes with a lifetime warranty. 
  • End user can swap caliber kits in a matter of minutes in the field
  • Caliber conversion kits are available in 3 calibers 9mm, .40 & .45
  • 9mm & .40 calibers use 30 round & 15 round readily available magazines
  • .45 caliber use 25 round and 15 round readily available magazines
  • Simple to assemble and service
  • Superior materials and ergonomics
  • Accepts folding UMP stocks or pistol braces
  • Accepts either German HK UMP or USA made parts  & accessories
  • Ambidextrous sling attachment points
  • Tool less disassembly and ease of cleaning pistol

These are all new manufactured parts by Omega. This is the NEW Gen2 Gideon Shadow Barreled Upper Receiver series and comes with the serialized upper receiver, 45acp 3 lug barrel, complete bolt, recoil rod, quick change barrel pin, set of 4 rail (including an extended top rail). The only thing needed to complete this out is an UMP lower (converted to semi-auto) and a magazine. Install this on your lower and you are ready to Rock N  Roll with some 45 cal goodness! You can also purchase the optional Caliber conversion kit and easily switch over to 9mm or 40 cal. The Omega Gen2 comes with a lifetime warranty. 

Note: Style side rails may vary from pictures.



It is your responsibility to be familiar with your current local gun laws BEFORE placing your order. Please feel free to email us with questions you may have.

By placing an order with Atlantic Firearms you are acknowledging and agreeing to all Terms and Conditions outlined in the Terms And Conditions section.

 WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to - 

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Atlantic Firearms,llc
10337 Bunting Road
Bishopville, MD 21813
Office: (410) 352-5183
Voice: (410) 352-5183
Fax: (410) 352-3374