So I received my Sadlak NM guide today & installed it promptly. When I pull back on the guide rod a few inches I hear a grating sound & friction. After inspecting it and swapping the SAI & Sadlak guides out a few times it appears the problem is that the Sadlak guide is pushing the spring up into the interior of the guide rod when under tension and making a lot of contact. I know this can't be normal! It sounds and feels terrible. Kinda burst my happy bubble when I was installing it. On a good note my new vented handguard looks sharp and only required a little fitting around the op rod. Does anyone have any ideas why this is happening with the Sadlak guide???