Gunsmithing ROBAR SR90 magazine custimization

[uzi_4_u]

I currently own a standard ROBAR SR90, I'm looking to have the mag well cut to fit 5-10 round magazines. Local company in MA (that will remain anonymous) is giving me the run around and asking for a ridiculous amount to do the work, anyone have a good suggestion or could point me in the right direction? I'm willing to mail out of state for quality work....

 

[MOAxp]

Check in with GA Precision /Badger Ord - they both offer inletting services for the M5 mag - very fair priced. The SR90s that I have personally were switched over years ago to the Badgers - I did it when I ran Tacticalstocks - no harder than any other inletting job