Reddit mentions of El Dorado Armory Sling Swivel QD - Quick Release Heavy Duty Steel 1.25" Sling Swivel Perfect for Rifle Slings

I have the Saber Carbine and it's a beast. I sounds really solid when shooting, you know, like, some guns kind of have a wheezing whistling sound when you fire them; the Avalon doesn't have any of that. Great ROF on full auto with a 11.1v lipo. FPS is solid (I've never chrono'd mine, but there are youtube reviews where you can see it's FPS. It has a solid, hefty weight to it. Buffer tube fits my 11.1v 1300mah stick lipos no problem. Like, /u/zxj4k3xz said the stock it a little wobbly and the right side selector is a little loose/ has a slight wobble, but neither of those things affect the performance of the rifle. A little tape on the buffer tube will fix the stock wobble. I liked that the stock stock (heh) has a slot to attach a sling and the hand guard has a DQ sling mount, all you need is one of these