What is a Modular Handgun?
The rise in polymer handguns has led to a new development known as the modular pistol. In the firearms world, modular is the buzz word for adaptable, or modifiable and modular pistols have the unique advantage of being able to swap parts to fit different roles or different users. Instead of buying a compact pistol for concealed carry, and a full size for open carry, a single modular pistol can have the ability to become either with the switching of parts.
Video From: GunMagWarehouse