Mine was a nightmare. Gas block wasn't pinned and had to go back to the factory when in turned into a single shot. Had failure to eject issues that were resolved with the o-ring fix. When the bolt face cracked off a lug, I called it quits. Got it repaired and it worked, but by this time I had lost total confidence in the product. Once I knew it was working and problem free, I sold it. Hate to say this because I'm not a fan of Kel Tec but I would buy an SU-16, cheap plastic rifle, over this thing any day of the week. I created a thread that listed all the problems people had with these things during the startup and got accused of being a negative nancy. Apparently some people didn't like consumers being informed about the products they were purchasing. It was somehow un-Canadian to cast dispersion's on this new product. It's heavier than an AR15, not as accurate, ugly as sin, blocky, front heavy, sharp and flawed. The only thing good about this product was the customer service. Owen was the best. There are lots of them on the EE pages.....must be a reason that people are dumping them still. Bottom line....Get a Ruger american scout in 556 which takes AR15 mags and you will be far happier. At least the ruger will be running when the WK develops another issue and bogs down, plus I can use all the AR15 mags I had for the WK. Just one guy's opinion.