At Allinarms, every firearm we build is fully customized to meet the highest standards of balance, reliability, and accuracy. As a trusted firearm parts manufacturer, we integrate military‑grade firearm components and precision engineering into each build so your shotgun or handgun performs flawlessly under pressure. Our shotguns and handguns are designed for shooters who demand all‑in‑one engineered firearms — whether for personal defense, competition, hunting, or investment — and reflect a marriage of rugged, battlefield‑proven parts with artisan finishing.