Junkyard Arsenal

From publisher blurb: This small supplement is aimed at adding more flavor and options to almost any gear-starved setting, be it a gritty guerilla war, criminal faction feuds, barren post-apocalyptic wastelands or an untamed space frontier. Inside you'll find: A system for crafting DIY firearms with appropriate quirks and shticks. Two Professional Edges to improve your heroes' gunmaking expertise. 27 scrappy and unorthodox weapons to arm your party and their foes.