Picked up my new Tavor (thanks Marine24) and took it down to the NRA Whittington Center last weekend. I mounted an Aimpoint Comp M3 2MOA (thanks Jamesonehr) that required a 1/2" riser to co-witness with the built-in irons (dot rides on tip of front sight). I also attached a Rainier XTC comp (thanks thvigil11) for the heck of it.
The original Tavor flash hider is of the A2 birdcage design, but with a twist. It is made up of a lock nut and the hider. The two together are the same length as an A2, but it allows you to easily wrench it on and off and time it properly - no peel or crush washers needed. I assume this is because you must remove the flash/hider to completely disassemble the weapon - to change barrels.
I got it zeroed in at 100 yards and it shot 1.5" groups with some "cheap" 55 gr Federal .223. I then shot some 62 gr green tip M855 that printed the same. I moved out to 200 yards and shot 3" groups with various ammo. I then took shots at the silhouettes on the hill behind the "Sighting In" range and smacked the 400 yrd antelope 7 shots in a row - missed the 8th and called it a day.
The trigger is HORRIBLE. I've read all the reviews saying it has a good trigger because it pulls a bar rather than pushing a bar, but there is a lot of mush before it breaks at what I would estimate around 10 lbs (I do not have a gauge). My finger tip was actually getting sore from attempting to slow-fire for accuracy. I even pulled the return spring from the trigger pack as suggested on some forums, but it did nothing to improve the trigger pull.
The rifle felt great in any shooting position due to the balanced weight. However, a vertically challenged friend I was shooting with hated the length of pull. I had not really noticed, due to the overall oddness of the design, but the length of pull has got to be over 15 inches. I usually set up my ARs around 13.5" or so, and this rifle is easily 2 inches longer - with no way to adjust it. I suppose someone could come up with a shorter recoil pad, but then the overall length would be too short with the 16.5" barrel.
The Tavor worked with all mags I tried: Lancer 20 and 30, USGI 20 and 30, Surefire 60, Magpul Gen2 and Gen3, and of course, the included IWI mag - which is a really nice design that I have never seen before.
Overall, I love the rifle (thanks again Marine24), but it does need some trigger work. I'll wait and see what others do to lighten the trigger pull before breaking out the polishing stones. Perhaps a wider/flatter trigger would help - the stock trigger is profiled like a 1/4" steel bar.
ETA:
Now that I think about it, perhaps the extra length of pull is to move the shooter's head further back so that left-hand shooting will not eject the shells directly into the shooters cheek. (Yes, I know it can be swapped to eject out the left side). Just a thought.