^ Ah, no problem.
I was asking only to see what you wanted out of the tool, that' all.
I hope you did not read my question as being doubtful or disparaging of airsoft in any way. I was heavy into airsoft in my younger days (as an escape from everyday academics - I was in med-school at the time - that did not suffer the then-pitfalls of paintball: expense and a lack of involved/immersive scenario gaming), so much so that my contacts at the time included both individuals like Karl Rehn, Clarence Lai, and Eric Kincel, and even industry names such as KWA and Western Arms. Even today, I still own a large portion of my old airsoft collection, and I still use it in training, too:
^ Airsoft trainer on the far left. Training/practice beater in the middle. EDC on the far right.
With that said:
Is your locale permissive - and this includes neighbors who understand what you're doing (assuming you wish, in the first place, to share with them the knowledge that you own firearms) as well as seclusion from passers-by - enough that you can dry-practice with your firearm, outside? Or do you need to move it indoors? If the neighbors are going to be freaked out by something that looks like a gun, having an airsoft replica - even with the blaze orange muzzle marking in-place - outside for practice may still cause you some headaches....
Possible to move indoors, and just dry practice with your firearm?
Part of the problem with airsoft is that *rarely* is the balance of the replica actually that of the firearm. The vast majority have a center-of-mass that's dictated by the heavy-walled pressure vessel that is their gas-fuel magazine. As-such, their handling traits are not quite what they would be in real-life. With dynamic holster draw-to-presentation techniques being worked, having a more accurately weighed item in your hands my prove beneficial.
proposed above, the PPK probably is going to be as close as it gets for a gas-blow-back replica. I've got an old Maruzen replica of the Walther PPK, which is a cosmetically very appealing replica and true 1:1, but its durability as an everyday-use item is at-best questionable. Expense with this replica is another issue. Since I left the hobby, though, I know that Umarex either licensed a copy of it from Maruzen or had co-produced with Maruzen a copy that had a "metal" (don't get too happy, for the vast majority of non-custom-house far-eastern uses what we here in North America would call "pot metal," and is far from the 6061/7075 aluminum alloys that we usually think of in this type of application) slide, which should have been more durable.
The other problem is that the PPK replica from Maruzen/Umarex has been discontinued - a quick eBay search still brings up a few, though.
But I wonder....
For your intended use, would a "Blue Gun" work better? These are typically in the $40 to $50 range, and availability of the PPK replica certainly is not an issue (although again, we fall flat for the P-11).