Type: Pellet air pistol
Manufacturer: Umarex 
Model: Walther CP99
Materials: Metal and plastic (polymer) construction
Weight: 1 pound 10.5 ounces (752 grams)
Barrel: 3.3 inches, metal rifled
Propulsion: CO2 x 1
Action: Semi auto, single and double action
Ammunition Type: .177 caliber pellets
Ammunition Capacity: 8 shot rotary magazine
FPS: 360

Trigger Pull: The trigger pull on the Umarex Walther CP99 is in the mid-range for its double action trigger pull with most of the effort at the beginning and middle stages as it cocks the hammer and indexes the rotary magazine, it does have a predictable release point making it easy to put pellets on target. By racking the rear slide you can put the CP99 in single action mode which makes the trigger pull much lighter and great for very accurate shots.
Accuracy: I shot this air pistol at a target from 20 feet away in a free semi rested position and it performed well getting a nice tight one inch eight shot grouping just to the left on the target. The sights can be adjusted for windage if your aim is off to one side or the other. With my preliminary Chrony Chronograph testing using 6.9 grain RWS lead pellets I got pretty close to the factory claim of 360fps with an average of right around 346 fps.

Build Quality: The Umarex Walther CP99 is a metal and polymer air gun with a good deal of metal components on the inside giving the Walther CP Sport a decent overall weight and heft. It's worth mentioning that the Walther CP99 has a full size drop out magazine for holding the CO2 cartridge that gives the air gun some additional weight and functionality. The German made fit and finish is very good on the CP99 and the plastic quality is also very good.

Realism: The Umarex Walther CP99 is licensed by Walther and is based around the Walther P99. The frame is very similar to the P99 but the slide is not as accurate in terms of the real steel but you can definitely tell the Pellet shooting CP99 is a copy of a Walther P99. One of the biggest shortcomings is the safety, the real P99 does not have a safety but Umarex decided to put a rather large safety on the right hand slide area. I do however like the working de-cocker, slide catch for loading magazines and full size drop out magazine which give the Umarex CP99 a more realistic look and feel.

Pros:

• Slide catch and de-cocker are realistic and functional.
• Rifled barrel.
• Sights are adjustable for windage.
• Slide catch and magazine release are fully functional.
• Nice full size drop out CO2 magazine.
• Good combination of power, accuracy and CO2 efficiency (I got about 100 shots from a CO2)!
• Rail for accessories.
• Walther licensing.
• German Quality.

Cons:

• Up in the higher price range.
• Double action can have some stickier shots.
• Kind of funny safety, not true to the real steel Walther P99.
• No recessed barrel

Comments: The Umarex Walther CP99 Pellet CO2 Air Pistol is a nice step up from the Walther CP Sport I reviewed earlier. The CP99 is a much more accurate looking replica of the P99 and it also has more metal parts and a single and double action trigger. These added features do come with an additional $100 price tag but in my opinion are worth it. If you're a fan of the Walther line of pistols than you should probably take a look at the Umarex Walther CP99 as it would make a great addition to your airgun collection.