Hello all. I have some sincere trigger time on this rifle, but do not own one. My department actually owns several of these. IMHO these STG rifles have some neat concepts going on, but after years of training on and shooting/carrying the AR/M4, I found simple things such as mag changes and control manipulations difficult while in tactical mode. Just the nature of a bullpup design I guess. I'm sure these things will diminish with more experience and training time on this rifle. One of the neat concepts for this rifle is that with a simple bolt change, the ejection port can be moved to the left side for southpaws. The only real trouble I've seen with this rifle is an extractor problem which the company remedied with a new extractor. Also, after numerous rounds fired from a new rifle, you'll start to notice a wear spot in the plastic stock, directly behind the ejection port. Other than that, it's a neat rifle with great customer support. Again, just my opinion