Christian actually purposefully dropped/threw his last weekend and he picked it up and used it the next game like it was nothing.
He hardly threw it. It landed on a soft patch of ground anyway. Nothing most other GBBs couldln't handle.
Pistols I have owned: KJW USP (plastic), KJW M9 (plastic), KSC Glock 18C (Metal), KSC Glock 19 (Metal), KSC Glock 23F (Metal), and a KJW 1911 para (metal and plastic).
My fav was the KJW USP, but the low quality mags kept me from keeping it. Worked great with green gas out of the box. Very durable. But I would recommend staying away from this pistol just because of the mags.
The KJW M9 was definitely a workhorse. I lined the plastic slide catch with a strip of metal to reduce wear. I also put in a PDI piston head also. A very skirmish worthy GBB. One of Pacos favs also, he has owned a lot of KJW Beretta replicas. A good buy that you can't really go wrong with. Safariland 6004 holsters are readily available for it also, sometimes at good prices too.
The KSC Glock 18C became one of my most used pistols soon after I got it. Full-atuo fun. Near the end of its life it started malfunction. The selector would come loose sometimes, and it would get stuck in full-auto every once and while.
I got the KSC Glock 19 while I had the 18C and still have it to this day. I have to say it is one of the most reliable GBBs I have owned so far. But I also installed the upgraded hammer and recoil spring in her. Each mag has a high flow valve installed too. The upgraded hammer spring and high flow valves really helps operation in hot weather.
The KSC Glocks are good GBBs to get, although I would stay away from the full-auto models unless long term durability is not that much of an issue. I would put this GBB just below the KJW M9.
Both the plastic and metal versions of the KJW 1911 have served me well. It is quickly becoming my new favorite replacing my long gone USP in that slot. I haven't had to upgrade any parts on it to increase reliablity so far. However I have only owned each version for less than 6 months so long term reliablity is still unknown for me.