I've decided to lighten up my rifle by going with a lighter rail system. Currently I have the Midwest Iindustries extended carbine picatinny rail. Its heavy at over a pound (barrel nut included).

With MI new offerings, I see that I can likely shave 1/2 lb off AND add 2.5" of rail space by going with the SSK Key Mod or MLok series (MLok not yet released but I hope it will be by the beginning of next month). So, I'm pretty sure I want to go ahead and do it.

But... I don't want to go with one technology just to have the market leave it behind in 5 years time leaving me without direct attach accessories. In reality, all I am going to want to add is a light mount.

So, KeyMod, MLok, the next design or something else? I'm wanting a 15" rail that's light (main attraction to MI's new stuff).