Hello, just signed up. Searched for this, found many similar titles but no answers in them. I have a brand-new current production SNTactical with collapsible stock. The collapsible stock remains a good 1/2" open when I attempt to fully collapse. I took grip off, saw the spring loaded detent near the receiver, on top of extension, thought the round plastic sleeve that slides up and down the extension on the stock might be hanging up on that. I depressed it with a pick tool, but still couldn't get stock fully collapsed. I need it to collapse fully to fit safely in the case I have for it. Thank you in advance for any tips. Picture shows it at max closing. It otherwise seems to function properly through entire range.