Umarex HK USP Blowback CO2 BB Pistol Table Top Review

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Type: Blowback CO2 BB Pistol.
Manufacturer: Distributed by Umarex.
Model: HK USP.
Materials: Metal & Polymer.
Weight: 2.15 pounds (975 grams).
Barrel: 4 inches, metal non-rifled.
Propulsion: CO2 x 1.
Action: Semi auto single and double action trigger.
Ammunition Type: 4.5mm steel BB's.
Ammunition Capacity: 16 round drop out full size metal magazine.
FPS: Claimed 325.

Trigger Pull: The trigger pull on the Umarex HK USP Blowback CO2 BB Pistol feel good in both single and double action modes. Single action has a reduced reset with very little take-up before it release, the trigger weigth in single action is fairly light. In double action the trigger pull starts out a bit longer and heavier but then lightens up just before it releases. This will only be for the first shot since follow up shots will be single action afterwards.

Accuracy: At this point I have not shot the Umarex HK USP Blowback CO2 BB Pistol so I can only quote what Umarex is saying in terms of FP2 which is 325. That's sounds about right for a full blowback CO2 BB pistol in this style. We will find out when I get to my Field Test Shooting Video  for the Umarex HK USP Blowback CO2 BB Pistol.

Build Quality: The Umarex HK USP Blowback CO2 BB Pistol looks to be really well made. It's super solid at 2.25 pounds with a nice balance since the slide and magazine are both full metal. There is virtually no slide play but I am noticing just a little bit of paint wear around some of the high spots and in the breach area. This is common with KWC Airguns which may be the actual manufacturer of this Air Pistol, either KWC or VFC, I'm not sure?

Realism: The Umarex HK USP Blowback CO2 BB Pistol is virtually identical in looks to the Real Steel HK USP, it also functions nearly the same with it's full blowback operation, full size drop out metal magazine and working slide catch, safety and single and double action trigger. Thanks to Umarex the Umarex HK USP Blowback CO2 BB Pistol is full HK licensed also helping to pull of a believable replica.
Available From: The Replica Airguns Store.


  • Full blowback action with full size drop out metal magazine, what we all love to see!

  • Fully field strippable.

  • Metal parts where where you would find them on the real steal HK USP.

  • Very accurate replica of the original HK USP.

  • HK Licensed via Umarex.

  • White dot sights easy to sight in your target.

  • Single and double action trigger.

  • Rail for accessories.


  • Not a big fan a of the clamshell packaging, makes the gun seem cheap even before you actually hold and feel it.

  • Sights are none adjustable.

  • Warning writing on the right side of slide is a bit obvious.


I really didn't mind the previous non-blowback CO2 BB version of the HK USP as it had a full size metal magazine and metal slide making it feel great in the hand while still looking the part. That said having a full blowback version with a true single action trigger makes this the obvious choice for me. I'm really looking forward to shooting my Umarex HK USP Blowback CO2 BB Pistol and seeing what kind of fps velocity and accuracy we get from it in the Sea Can!

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