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OMEGA Omega Gideon Shadow GS45-BU Barrelled Upper w/ Rails Only

Product Code : GS45-BU


Mfg Item #: GS45-BU

Available In-Store
Available Online
Secure online ordering


Each barrelled upper kit will include detailed instructions for completing the build. In addition, Omega is offering to complete the modifications for you absolutely FREE, so as long as you have the necessary parts. You can just send the lower  receiver parts omega, they will make the modifications necessary, and send them back! Must show proof of purchase of the Barrelled Upper.

You would need to provide your own Lower Receiver/Trigger Pack and 45ACP UMP Magazine to complete the build. Once you have the lower receiver (You can get these from the following needs to be modified:

On the lower receiver, the mounting hooks where the lower attaches to the upper is 6mm. In order to fit onto the Omega upper, you need to drill out the hole to 7mm. Also remove any full auto parts and ensure the pistol complies with 922R criteria. THAT'S ALL!

The Omega Gideon Shadow (GS) is a recoil operated, closed bolt, lightweight, durable and easy to maintain semi auto pistol. Each pistol covers 3 of the most popular calibers in 9mm, 10mm, and .45 respectively. The end user can simply swap the barrel, bolt, and magazine allowing the end user to change the caliber in a matter of minutes. Weighing in at less than 5lbs, the Omega GS pistol is a superior sub-gun range performer where the MP5 pistol is approximately 1.5 pounds heavier. Each Omega GS pistol receiver is made from the high impact glass reinforced polymer. A superior pistol platform providing enhanced strength, durability, light and nible operation. The Omega GS pistol is a highly effective range performer sure to please shooters of any background or shooter skill level. Comes with 1 magazin. Optional rails and SB Tactical brace are sold separate and not included. We have product listings available on this website that include the brace and rails.

  • Models built with a combination of original UMP and US parts.
  • Made from high impact reinforced polymer and steel components.
  • End user can swap caliber kits in a matter of minutes in the field, no gunsmithing required.
  • Caliber conversion kits are available on the market in 4 calibers 9mm, .10mm, 40 & .45.
  • 9mm & 10mm 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 NO gunsmith needed.
  • Superior materials and ergonomics.
  • Accepts folding UMP stocks or pistol braces.
  • Accepts either German HK UMP or USA made parts  & accessories.
  • 3-lugged & threaded 16×1 Barrel for mounting Muzzle attachments or suppressors on 9mm barrels.
  • Integrated hard mounted point for the addition of the optic rail.
  • Integrated tri-rail mounting points for lasers, lights and grips. Rails sold separately.
  • Hand stop with ambidextrous sling attachment points.
  • No tools need for disassembly and ease of cleaning the pistol.
  • For your caliber conversion kits or other HK related parts & accessory needs: WWW.HKPARTS.NET

Determined at checkout.