Is the QD/button sling swivel attachment method reliable when it comes to toting a heavy bolt gun. I may be wrong, but I thought they were originally designed for AR platforms in general. I'm trying to decide on a solid sling attachment method for my 24" 6.5 Creed/Mcrees G5. I really like the way they work and how quick you can remove your sling, I'm just having a hard time trusting them when I look at what's making them work. I haven't used them before so I don't really know their capabilities. Like most other tools of the trade, I'm sure some are better than others. Any first hand experience from anyone is greatly appreciated as well as brand recommendation. Prices on those things are all over the place. Also, what about use in a poly stock? ie. Magpul CTR.