I have the information I believe you're looking for. I've done my own torture test to my Scar 17, twice...It did fine with dirt, water, and mud covered on it. The first time I did it, I had to push the stock trigger forward 3 or 4 times to help it reset as dirt got into the lower receiver which forced that issue. (This can also happen with an AK, or worse, sometimes cycling issues too) The second time I did it, rifle more broken in, that problem didn't happen. I wish I had video taped this lol. It never failed to cycle or fire, not once. Put the round in the chamber, and ejected perfectly EVERY time ! As for dragging it and dropping it...I haven't done that, but with what I've done it wouldn't be a problem. The VLTOR receiver extension puts an AR buffer tube type butt stock on it, and that takes care of the possibility of the stock SCAR's polymer butt stock breaking, and I have an aluminum SEAL lower receiver on order from Stryker Enterprises. I believe the polymer lower is fine, but I like the ruggedness of aluminum also. I would like to get aluminum case deflectors also. I'm not sure they are available on aftermarket parts yet, but will have them made at a local place if not...pretty simple task, may be pricey to have done though. I'm considering doing a few up and selling some to recoup my cost if I go that route. Now this makes for a pricey rifle, but cheaper than buying several others that aren't as good. You will have a very reliable rifle with interchangeable barrels, which AK don't have, and more ergonomic than AK. If you get a 7.62 x .51 AK you will have rare and hard to find magazines...a no go in an end of days situation for sure. Also, the 7.62 x .39 AK is definitely not even in the neighborhood as the 7.62 x .51 Scar 17 round for down right power and distance. The Scar can be readily scoped too. So if you want drop proof ruggedness, the SCAR can be equipped, although it's rugged enough in it's stock configuration to withstand any conditions you will run into anyway. But I do understand and know where you're coming from regarding a rugged rifle stand point. Also, you can keep the stock lower and butt stock on it and keep it very light weight for run of the mill hiking, camping, and general outdoor use. A light weight 7.62 NATO caliber rifle is an essential for deep woods or desert fun. The SCAR blows the AK away in EVERY category, even in durability...and definitely accuracy...I answer your question with this...it's a no brainer...the SCAR BEATS AK in EVERY category. This is not an opinion, this is a fact. I demand...DEMAND...the above listed requirements out of my go to gun !(And don't forget, you're an AMERICAN) I have spoken !!! : )