[SUB]I have a Samson Evo Keymod tube and ordered a BCM QD keymod sling mount for it. The BCM sling mount has a small lug that goes towards the muzzle end of the tube but the lug won't slide forward into the slot to lock it down. Anyone else have keymod compatibility issues? The Samson Evo came from Midway and the BCM sling mount came from Primary Arms. I could probably take a Dremel polishing wheel to the lug to shave it down enough to fit, but don't like the idea of doing it. [/SUB]