N-Strike Modulus (also known as N-Strike Modulus System) is a series of Nerf products that was released in fall of 2015.
The N-Strike Modulus series focuses on customization of blasters with multiple accessories, including tactical rail accessories, barrel extensions, and detachable shoulder stocks. All blasters released under the series come packaged with accessories that can be interchanged with one another. Several blasters could also double as attachments.
The N-Strike Modulus series was officially announced at the 2015 New York City Toy Fair.