Instruction: Evaluate the answerability of a question by analyzing the related document, outputting yes if the document contains information addressing the question, and no otherwise.

Input:
Question: Will these fitmthe sw mp 40 compact 10rd mag?
Document: A must have for the S&W m&p shield .40 especially on the longer (7 round) mag. Still helps on the 6 round mag
Grip extension fits perfectly for both the 7 and 8 round  mags for both .40 and 9mm. Easily installed in seconds. Handgrip ideal and improved over standard. The grip with the 8 round mag really extends out quite nicely without a great deal of imprint.Highly Recommended.
This magazine extender is amazing. I put it on my 6 round magazine from my M&P Shield 40 and it is actually more comfortable than the 7 round extended magazine. I highly recommend these mag extenders. They are easy to put on, look good, and are comfortable. I'll be buying more as I purchase more magazines.
These , when put on the 6 round mag ( I have a .40) it makes it feel even more ergonomic, at least to me , than the 7 rounder that has a longer grip on it . This just slips on the bottom of the mag after you remove the base plate ( make sure to watch so the spring in the magazine doesn't shoot across your house like mine did) and you now have a easier to handle shield :)
Goes right on like a factory part and looks it too. I have size 12 hands and this helps get a little extra leverage on the short 6rd mag grip. (.40 cal.) Doesn't cause any excess printing either. Should have come with it stock. Also arrived quickly. No-brainer upgrade for M&P 40/9.
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.
Extension slides on perfectly with my S&W .40 Shield. I would say their is maybe a 1/16 gap, nothing that is unmanageable. Feels great to carry and much better grip for those who prefer the 6rd mag for concealing but don't like the feel of the 7rd mag extension. I need to order another 6rd mag and will definitely buy this product again. It's Range Time :D Keep Calm and Carry On!!!!! !
fit my s&w shield 40 perfect. took bout ten seconds to put it on. fits my hand well, and looks good on the gun.
I purchased this for my M&P .40 Shield. I placed the extension on the smaller magazine, and it fits perfectly. It gives that little bit of extra grip, good when firing this mule. It does not cause any discomfort when concealed. Good Job Pearce and Company!
I purchased this item for my M&P Shield .40 and it has really enhanced the my ability to manage the recoil, stabilize and added support the gun. Adding the magazine extension to 7 round magazine was a great asset to firing the gun with giving my pinky a place to rest. I plan to use the shield as my off duty carry and the extension does not interfere with concealment at all.
Answer: no