Re: Stock differential...
The short answer is yes but you will also need to do some mag fitting.What you have is more than likely a stagger feed.
Re: Stock differential...
Filling the existing hole with an epoxied in dowel works well. I have had to do it on other projects and works just fine.
El Lobo
Re: Stock differential...
froggy is correct (and then some)...
The center-feed (CF) and stagger-feed (SF) are more than different enough that I expect you will do some facy fitting in this area. One thing that comes to mind is the rea pillar just n front of the trigger. In the CF, you have a small metal tab that fits the CF box to the inletted bilnd cutout. You'll have to take that into account as well if you want it to work. Another option may be to ignor the mag box entirely and fill it in making it a single shot.