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Orders placed during closure will ship on or after Friday 1/20.

Smith & Wesson M&P Magazine .40 / .357 Fullsize 15 Round

Smith & Wesson M&P Magazine .40 / .357 Fullsize 15 Round
Item# SW39494
$41.99   Now $29.99
100+ Available
Smith & Wesson M&P40 (and MP357 .357) Fullsize .40 15 round capacity magazine. Brand new original factory Smith and Wesson magazine.

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Attention customers: if your billing OR shipping address is located in CA, CO, CT, DC, HI, MA, MD, NJ, or NY you must review our updated magazine shipping restrictions before ordering. If you order items that are prohibited by our restrictions your order will be canceled and a 10% cancelation fee will be charged.


September 04, 2010
By James Wright

Perfect OEM magazine for my M&P. Magazine fit and finish are excellent and can be easily disassembled for cleaning. Rounds load easily, mags seat securely, rounds feed reliably, mags release and fall free. Can't ask for anything better.

March 24, 2011
By Craig Veal

Have purchased a total of 6 S&W M&P40 mags. ALL of them are brand new as advertised. Placed the order on Monday and received them via U.S. mail on Wednesday. GREAT service.

Perfect mags
March 26, 2011
By Douglas Hopkins

I ordered two M&P .40 cal mags from here because they are SCARCE, these were the cheapest around and I purchased the last two before they went out of stock. Best deal around! Hopefully they get some more in stock soon.

Best price I found!
May 13, 2011
By John

I needed another magazine for my M&P40. I knew they retailed for around $41. Looked all over the internet including Gunbrokers and found them here at for $24.99. Magazine came in 3 days, brand new, perfect condition. What more could I ask for? Thanks!

Saved a bunch
June 27, 2011
By Dale

Genuine S&W mags. No retail packaging. Comes rapped in brown paper. Saved $17+ over what Midwayusa wanted for same mags. Good deal!

.40 S&W Mag Purchase-
July 27, 2011

Same mag that S&W sells at a much better price than I could find anywhere else. Order was processed and shipped quickly, received them in just a few days. I definately will be back for more.

M&P 40 mags
August 17, 2011
By Dwayne Brighouse

I ordered 4 of these mags for my duty weapon. received them super fast and new as advertised. not the first time i ordered with 44 mag. excellent service and selection as well as great prices!

October 01, 2011
By james stallcup

44 mag is the best

M&P 40 Mags
January 03, 2012
By Matt

Great OEM product! Even newer than the ones I carry on my duty belt! Love the speed of service and will definately be ordering many more mags in the future!

Holy Fast Service Batman
January 28, 2012
By Adam

Great factory mags. Absolutely no problems and function as expected. One of the mags that came with my gun actually sticks a little when released. I sent it back to S&W and they sent me a replacement that did the same. I was a little apprehensive about ordering these factory mags thinking they would have the same problem. Not at all. They are smooth as silk as my one OE mag is. Guess I just won't use the other mag except for target practice. Also super fast service. I made a late night order, received confirmation of shipping the next day and had them in the mail two days later. Thanks!!

April 03, 2012
By HB2

I could not believe that my Smith and Wesson mags were on my door in 3 days!!! This is the first review I have ever written! I mean EVER! Great Service 44MAG!

Great Service
June 16, 2012
By Dave

Great price, in stock and super fast shipping. My first purchase from 44Mag but I will be back.

July 01, 2012
By Chris

i only wanted 1 mag from the cheapest place i thought was cheap at 38.95......heres its almost half the pice of what all othe stores charge, so, i bought 2, figure why not :) coming back, especially since everyone seems to be so pleased on how fast the shipping is :)

Outstanding service and prices!
July 20, 2012
By Shane

I've ordered these magazines twice now and have been super pleased with their performance. Also is an AMAZING site with great service and super fast shipping! Keep up the great work guys!!

Perfect Mags
August 17, 2012
By Larry

I ordered 2 .40 cal. M&P full size mags. They are exactly the same mags I can buy at the local gun shop (for about twice the cost).

September 06, 2012
By Allen Saxton

Bought two for my M&P40 VTAC. Took them to the range today and used them to send over 500 rounds down range. Not one issue with these magazines. Best price on the planet! Get yourself two, four or more.

100% authentic smith and wesson mags
September 29, 2012
By Dennis

Ordered 4 of these mags. all are real smith and wesson .40 mags only problem was 1 of the didnt have the hole punched out to see the 15th round but i can fix that with a drill. will definitely be ordering more of these soon.

Great Mag
October 04, 2012
By Branden

This is a great factory magazine.

Very Pleased
January 29, 2014
By Don Howard

Thank you 44 Mag for very fast delivery of my order. My order was exactly as described in perfect condition and delivery was extremely fast and best price anywhere.

February 07, 2014
By ParaLarry

Thanks for the best factory mags; I've tested all six (for Production Class) and they work flawlessly. No loading problems and the fit is perfect. Thanks again

The real deal !
March 19, 2014
By Tom Turrise

I shopped around for extra mags for my M&P 40. They were either overpriced or cheap knockoffs. But the ones I just received from were the original S&W magazines and fit perfectly into my pistol, and for a very reasonable price. Thanks

Great Price and Lightning Fast Shipping
March 24, 2014

Like most people, I searched online for some extra magazines for my firearm. When comparing prices with top name and competitor prices, blew them away by having the best price. So I placed my order. A couple of days later I check the tracking number they provided me and it said delivered! So I went to the mailbox and before I even had a chance to track it, it was already here. Needless to say, will be my first stop in online shopping for these types of products. I normally don't write reviews but I wanted everyone to know that they were authentic products at an outstanding price with lightning fast shipping. Buy Here With Confidence!

November 29, 2014
By Shawn Lyon

This is a factory mag that is brand new. It does not come in any factory packaging, but it is new. I have bought 3 of them and received them within 3 days from the time ordered. the company is fast at getting out deliveries. match that with the cheapest price I can find on them and it works out perfect. I am thinking about buying more to replace my older mags that came with my gun.

January 15, 2015
By Ken

Amazing Price and shipping! I needed 2 extra mags. I had them at my door in two days.

M&P .40 Magazines
October 10, 2015
By James Lee

I shot over 200 rounds with the magazines that I bought. I can really said they work great!!!! OEM smith&wesson magazine for a low price!! I recommend this magazine to anyone looking to buy.

Great Mags
October 18, 2015
By Leroy

Got these 2 for my 40 cal. I would buy these again , very satisifed

As good as it,gets
November 12, 2015
By Mike Young

How can it get any better, OEM Smith & Wesson magazines at a price this low. It almost feels like your stealing them.


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