I do have to say, modifying the PPK to Full Auto is not recommended, mine originally worked well but the heavy blowback in full auto eventually broke the firing pin setup and I lost it somewhere in my back field. I had to Macgyver a bolt in place to kind of work but now my Full Auto Modded PPK shoots out of control, what I mean by this is when I press the trigger, it does not stop shooting until all the BB's are gone. Safe, I don't think so!
My suggestion is to leave the Umarex Walther PPK as is, it truly is a an awesome CO2 Blowback BB replica with some really decent blowback recoil in a small airgun.
Action: Semi auto, double action only with blowback.
Ammunition Type: 6mm plastic Airsoft BB's.
Ammunition Capacity: 15 round stick magazine.
FPS: 380.
Trigger Pull: The Double Action Only trigger pull on the Umarex Walther P99 CO2 Blowback Airsoft Pistol is long but not overly heavy for a double action trigger, it does have a break point mid way where it locks partway back, I presume this is the point in which a BB is loaded from the magazine into the barrel? The rest of the pull is still medium but much shorter with a distinct release point.
Accuracy: I did do a quick preliminary test before I made this table top review to get an idea of where this gun performs in terms of FPS and accuracy, I shot 5 rounds through my Chronograph on a fresh CO2 and got an average of 333FPS which was a bit lower than the claimed 380 but it was not the hottest of days. I also stepped back 20 feet and from a semi rested position I was able to get 9 shots within 2 inches of each other which was not bad for a DAO gun that I have never shot before. I did shoot a bit down and to the left with the set sights.
Build Quality: The Umarex Walther P99 is well built for its rather low price tag, it may not have all the bells and whistles but it does get the job done with good fit and finish and materials used. You will find a plastic/polymer frame but there is a lot of metal where it would normally be found on the real steel version like in the slide, magazine, trigger, slide catch, magazine release, inner barrel and many other internal parts. No real complaints here!
Realism: The Umarex Walther P99 CO2 Blowback Airsoft Pistol is pretty close in looks to a real steel Walther P99 with the exception of a missing decocker, but I'm pretty sure this is the same with the real steel DAO version? There is also the funny looking safety on the right side of the frame found on many Umarex airguns. I have to mention the red tip but again this can be removed and even when removed the barrel it is still recessed which adds to the realism. The Blowback action, Walther licensing and nice heavy weight all add up to make this Airsoft pistol look and feel the part.
Metal slide and internal parts gives it decent weight.
Rail for accessories.
Well hidden CO2 screw.
Walther licensing.
Recessed inner barrel.
White dot sights, easy to use.
Right amount of power for indoor CQB style airsoft games.
Cons:
Comes with a red tip even in Canada.
Double action only, so trigger is a bit heavier.
Kind of funny safety, not like the real gun.
Blowback was a bit sluggish.
Comments:
Overall the Umarex Walther P99 CO2 Blowback Airsoft Pistol is a very good buy, it's a decent replica of the real steel Walther P99 with blowback operation, lots of metal parts, good fit and finish, decent performance and full Walther licensing and trademarks. All at a very affordable price tag. It may lack some of the extras you will find on more expensive and more functional Airsoft pistols but the simplicity of the Umarex Walther P99 CO2 Blowback Airsoft Pistol means it will most likely be a bit more reliable with less to go wrong down the road. If you have been looking for a nice Walther styled replica in an Airsoft version this may be just be the ticket!
My Vimeo Video Review for the Umarex Walther P99 CO2 Blowback Airsoft Pistol:
I will be doing proper Table Top and Field Test Videos for each of these Airsoft guns as soon as I can get to them all, starting with the Umarex Gas Blowback H&K MP7 A1 Airsoft PDW so stay posted for these upcoming video reviews...
Another filed test video in the series. This one is of the Umarex Walther PPK/S CO2 4.5mm BB pistol, I show you both my regular unmodified all black PPK/S and shoot it through my Chrony Chronograph with an averaged reading of 282 FPS, not bad considering the manufacturers claim is 295.
I also shoot 8 rounds with my stock Umarex PPK/S at a target to see what kind of accuracy I get, and just for fun I shoot a 15 round magazine into the same target with my modified fully-auto sliver slided PPK/S.
To finish things up, I slowdown the action just a bit using my high speed Casio camera to capture the blowback action of both my stock and modified Umarex Walther PPK's.
Enjoy my YouTube Video of my Umarex Walther PPK/S CO2 BB pistols getting Chronographed, shooting at a target and slowed down a bit with my High Speed Camera.
This is a video I posted on YouTube a while back that has gotten a lot of views (Now Over 300,000). It's basically me and a friend shooting a couple of guns. The first set of guns (One in each hand - Tomb Raider Style) are two Walther CP99 Compacts made by Umarex. The CP99 Compact is a great little BB gun with a very fast and light trigger pull.
Next up is another Umarex product, a Walther PPK. This one is moded to fire Full Auto, making it one of the smallest Full Auto BB Guns. Too bad it's all over so fast! I'll look at doing some proper reviews of these fine Airguns down the road...
