[theastronaut]

Then I guidecoated the K93 and wetsanded everything with 280 grit to knock down the orange peel. I've found that starting with 280 grit really flattens the primer quickly, then I re-guidecoat and wetsand with 500 to get the primer smooth enough to paint. I let everything sit out in the sun for a couple days when possible after sanding with 280 to help it cure quicker, then sand with 500 right be painting.