Originally posted by $bowhunter$: hey folks i figure id share my simple DIY way to add weight to your carbon and aluminum arrows without buying new inserts or tapping the back of your inserts...all you need is a nail of your choosing weight (mine is 50 grains) and your factory insert (15 grains) then add a touch of hot melt to the head of the nail and attach to your insertand TAA-DAA! your simple yet effective heavy insert