About Us
About Us
StoneIron Defense (SID) is focused on developing precision firearm components, 4140 steel optic plates, and tactical hardware with an unyielding emphasis on quality, exact fitment, and field reliability.
Our background stems from years of hands-on manufacturing experience in high-precision CNC machining,
product development, and strict OEM production. We understand that firearm performance starts with micro-tolerances,
and we apply that exact engineering mindset to every part we produce.
Our goal is to build a trusted brand that delivers duty-grade parts for serious shooters, commercial dealers,
and custom platform builders, while fully supporting OEM projects with consistent, scalable manufacturing capability.
From initial CAD concept to final finishing, we value practical engineering, durable materials like solid steel, and meticulous attention to detail.
At StoneIron Defense (SID), we are committed to building tactical products that are
simple, functional, and dependable when it matters most.