I've read several accounts of people using the rifle with a suppressor and it sounds like it's extremely over-gassed. Sounds very similar to my experiences with the same setup on a standard carbine-length AR15 - just too much overpressure. You really have to dial in the gas system for intended use, and there is no option for that on the Tavor.

It's easy to dismiss until you actually use the system, and have that ammonia-smell blast into your face and eyes. It's like having a face full of teargas; when you have a high volume of fire it completely immobilizes you and makes it impossible to target the weapon system.

Still, I may throw the AAC 51t on there if there is room and try my SPR/M4 just to see ... somebody want to buy me some ammo? :-)