There is a very easy way to remove the rattle from the nova fore end.
1) Buy about 4-6 inches of 3/4 inch wide sticky-back velcro, preferably black. That is much more than you'll need but I don't think they sell less.
2) Cut velvet side so that it fits the inside contour of fore end where it first encounters the receiver. It cushions and wipes with every stroke.
3) Now at the front of the fore end where it sorounds the magazine tube needs its forward edge radiused with a few strokes of an emory cloth.
4) On the magazine tube where the fore end rests when loaded and cocked apply a layer or two of slick surfaced pressure-sensitive tape.
This process essentially shims up the parts that rattle with cheap low drag material. It makes a huge difference.
