So sig came out with the serialized FCU and then you had options to “build” a 320/365 to your liking . Now with the Springfield armory echelon getting the same aftermarket support with grip modules and what not for what they call the COG that is also the serialized part and can be put together with various custom grip modules etc. will this become a common thing with other manufacturers? I know I enjoy the ability to have modularity and options. I just took my stock echelon with integrated comp a step up with a sharps bros aluminum grip module with much better feeling ergos and twice as heavy over the polymer grip module which lends to a pleasure to shoot. Especially with the DPM recoil spring system also tuned for shooting flat and fast . Anyone else appreciate the modularity and options with a serialized FCU/COG? Anyone think it will become a trend?
Here is the echelon makeover thus far…
Here is the echelon makeover thus far…

