A plastic stock is difficult to touch up a scratch on. The problems are many. The type of material, the texture of the finish,etc. If a thermoset plastic it can be textured with a heated metal object and if the textures match it will be difficult to detect the repair.. The problem is duplicating the texture, closely... I've fooled with a few but the job doesn't work well and takes a lot of time.. For a quick fix one can rub a hard polished object over the plastic and rub out the scratch to some degree. If the stocks finish is a bit matt a piece of sand paper and light taps with a hammer can transfer some of the texture to the plastic.. Probably the best thing to do is to look at the scratches as memory notes.. Memories of a hunt or a part of one anyway. Some of the shiney stocks can be touched up much like an autobody.. Paint cacn be used to fill the scratch and the texture reapplied.. But I suggest just leaving it alone unless the integrity of the stock itself is endangered..
