Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: Does this fit the flush fitting mag?
Document: I was really excited about this purchase seeing I had 3 mags for my Shield 9mm and 1 didn't come with the factory extension. For the price of this extension, I thought it would be great. Then when it came in only 3 days after I ordered it, it didn't fit! I mean not even close! The packaging was correct for the pistol and the extension looked like the one on this page. Oh well, looks like that mag will stay flush.
Well made and does what it says. But not for me. It makes the flush mag in .40 S&W the same length as the extended mag that holds an extra round. So just buy an extra extended mag. All that being said, it still gets 5 stars because it fits perfectly, matches the gun exactly, and if you just can't shoot without the extension then it definitely will make the gun more functional.
Excellent fit on shield 9 mm. Feels much better. Now can get full purchase on grip with 7 round mag.
I will recommend this grip to anyone with large hands. Perfect for me,  took it in my magazine and shot over 200 rods and the grip fit my hand and extended the mag perfect.
It adds an extremely nice fit for people with average or even slightly smaller hands. I personally find it more comfortable than the full grip with the 8 round mag!
This made my 7 round Mag actually usable, prior to this purchase that mag just stayed in my bag because it was the 7 round Mag was to small to fit my hand, easy install and great product!
I likes this very useful grip extention. It slides on mag just alittle. I would like it a tighter fit without adding anything.I am buying another for my 2nd mag.
I have a different version of this same mag extension, made of metal, and I prefer this one. It's more ergonomic and the fit with my pinky is better. This makes the Shield feel so much better in my hand. Highly recommend.
Makes the 7 round mag comfortable to use. But the 8 round extended mag had to be smacked sharply in order to make it seat properly. "fit just fine before" A little sanding fixed the problem, and it works great now.
I LOVE this thing. It feels in that missing gap for my pinky! Holding my shield seriously feels a million times better with this thing on.I got this for my 7 round mag, and I will definitely be ordering another one soon. The fit and finish is great on this thing, it matches my shield's finish out of the box. Install is simple, you just pop off the old magazine base and put this one on it.
Answer: yes