I like my M4 handguard the way it is. If I go with something like the BMAS Tripple Mount I can mount a light left, right, bottom. Same with any additonal items that come to mind.
When I purchase my weapons light I can try it in various positions.
What say you about the Tripple Mount?
Quality? Solid? Mess w/ accuracy?
I have one on my m4 and it's rock solid. Very easy to attach. Like you said. I have the Bushmaster light mount mounted on the left and the Bushmaster bipod attachment mounted on the bottom. You have three positions to switch things around. A little expensive but worth the price. You get what you pay for. Hope this helps.