- Truly outstanding
I have only ever used this pistol on propane, so these are the results I have had with it. I will probably update later on with my results on Duster.
This is easily the most comfortable handgun ever made (the real-steel version I mean). The ergonomics are outstanding, and you could shoot it all day. The airsoft version is no different. The sights are great, and it feels excellent in your hand.
Once you get to shooting:
I would agree that on propane it behaves erratically at times. The kick is sometimes too strong for the slide release to catch the slide, so pay attention when you're shooting, or you may find yourself shooting air instead of bb's.
On propane, this thing kicks like a mule on speed. It feels outstanding. It's also very loud and intimidating, which is a plus when you're shooting the neighborhood kids in a war, but in a proper airsoft game you may want something a little quieter.
It took me a long time to dial in the hop-up, and once I got it down it still took about 100 rounds to steady up. DO NOT LOSE THE HOP-UP ADJUSTMENT SCREW. I did, and it took me three weeks to get a replacement from Umarex. I love the guys, but they don't have the most knowledgeable service department.
A note on durability:
I've been using propane, and as I said, it doesn't always lock the slide. The slide-release has been going up partially while the slide is trying to lock, but it rebounds too soon. As a result, the cut-out on the slide where the slide-release catches has become slightly worn. This has no performance related issue, but it does mean that when there is no empty magazine in the gun, and the slide is locked, it only takes a slight movement to make the slide go forward again. This isn't a problem, so much as a very minor inconvenience, and was bound to happen sometime as the gun is made of plastic.
Feels truly amazing
Shoots very well
Makes you feel like James Bond
Kicks like a mule
Very efficient (1 or 2 full mags, certainly 1 on a propane fill)
Extended magazines are available if you know where to look
Plastic, although still hefty
Umarex doesn't have awesome service
only a 60 day warranty
To adjust hop-up the gun must be taken down. This can become tedious while you dial it in.
Magazines are outrageously expensive
Definitely worth having for the player or collector.