Not good with a can cover. - IMI Defense 4 Notch M-LOK Rail Extended Section For Light/Laser Application

If you are using a can with a cover on a pistol there is not enough cantilever angle to allow space to use the cover. The can clearance is fine but not with a cover, The end of the rail section close to where you put your hand is too tall and blocky. My thumb runs into it on my AR pistol because of limited mounting space. No problem at all for use on a carbine but not a good choice for pistols. I ordered the Magpul version and have no issues with using it on my pistol with a cover.