Most of the m-lok slots not usable ? - B5 Systems Handguard - M-Lok

Not even sure how this one passed B5 muster esp since all my other furnature on all my AR platforms is B5 Systems since they make awesome products. IF you want to upgrade from stock carbine HG with little or no intentions of adding any furnature to the forend then its a five star piece. C grip is so much easier. Thinner has its consequensce. The heat shield on bottom precludes abilty to add Magpul M-lok QD mount near the front. It deforms the heat sheild then creates a huge gap between upper and lower pieces. The 12 O'clock rearward M-lok slots are right up against the gas tube, ( Right up against it!) so those cant be used either. Plastic is not strong. Again, its great until you want to add stuff to it. Has a shape reminiscent of a PTR-91. Wish it were better made and just a bit broader to accomodate M-lok nuts...The Magpul version of this guard has nothing at the 12 O'clock!! Not even M-lok slots so I had hoped this was to be my solution w/o having to add a drop in full rail system.....oh well.