Are they worth the $$....IMHO YESSS...Every pennys worth.
I am now using my SVI as my main gun with my STI as my back up.
Something about steel ( agressive texture or not) that you notice straight away....a total lack of "flex"...that's the only
way i can discribe it
My new SVI
My Original ( now back up STI)
And before it starts.....7/10 of my STI mags WORK GREAT in my new SVI gun. without modification.