What is everyone using to colorfill the rollmarks/logos? I have 2 Spikes AR's with colorfilled roll marks and my oldest son (almost 6) wants an "AR" for his first gun. He's really good and very responsible so I feel skipping the bb's and pellets to go with the M&P15-22MOE is a good birthday gift. Plus it would require direct supervision from me, and use only at the range (not the backyard) whenever he has it in his hands.
I dont know if the polymer will allow mistakes if I use model paint. Will fixing the painting errors with mineral spirits damge the finish? For those who have gone the crayola route-has it held up in high exterior ambient heat or heat from the gun?
Thanks.