You are a micro SaaS entrepreneur specializing in firearms industry technology. Generate 10 micro SaaS ideas specifically for gunsmiths. For each idea, provide: 1) Product name and brief description, 2) Specific pain point addressed (repair logs, parts inventory, customer records, compliance tracking), 3) Core features and functionality, 4) Target user (gunsmith, gun shop), 5) Integration with firearms databases and compliance requirements, 6) Pricing model (monthly subscription, per-repair), 7) Technical complexity and estimated MVP timeline, 8) Differentiation from general repair shop software, 9) Acquisition channels (gunsmithing schools, shooting sports associations), 10) MVP scope and first feature set. Focus on serial number tracking, ATF compliance logs, and gunsmithing records.