Umarex Smith & Wesson M&P 40 .177 Caliber BB Gun Air Pistol Magazine, 15-Shot Capacity

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1. Phoutthasone Inthalangsy Verified Buyer – 16 October 2024

   I bought this to replace my son’s S&W MP40 CO2 pistol magazine that was broken and this has worked flawlessly. They are a little pricey, but works well with his BB pistol for target practice in our backyard.
   

2. Miller Verified Buyer – 14 January 2025

   This product is authentic metal casing just like the one that comes with the gun nothing is different about this product frome the original one I’m happy with this product it comes with Allen key too if have CO2 leaking with crosman co2 just go with ASG CO2 and add a drop of silicone oil on top of CO2 cartridge haven’t had an issue yet with crosman yet she doesn’t like it dry folks 😂 lol remember lube first and no problems you’ll tear that seal up fast if kept dry the seal is rubber and CO2 is cold when rubber seal gets cold it tears and breaks. silicone oil keeps it 100 just remember it’s man made nothing lasts forever and neither do we be safe out there .
   

3. Shane Hard Verified Buyer – 20 February 2025

   Feels just like a loaded magazine. Would have ordered more if they weren’t so expensive
   

4. Andrew Cipriano Verified Buyer – 26 February 2025

   I’ve bought 3 so far and everyone had trouble feeding the the next bb, the slide would just stop at the bb, I had to manually cycle an entire magazine as well as load the bbs from the top to help lossen it up and now they work just fine
   

5. Jennifer O Verified Buyer – 6 April 2025

   These are awesome and they fit perfectly.
   

6. Ricky Zhong Verified Buyer – 9 April 2025

   This fits but sometimes the mag falls out without me clicking the release button on my pistol. Weird
   

7. Anonymous Verified Buyer – 6 May 2025

   I’ve bought two of these now and they are both defective. After 5-8 shots the CO2 cartridge just dumps itself, the magazine that came with the gun never had this problem. At $50 each, months apart, I would expect there to be better quality control. Very disappointing and a waste of time that I could be spending on this hobby, I don’t know if I’ll buy from Umarex again. It isn’t very fun shooting with one mag.
   

8. Q_Review Verified Buyer – 7 June 2025

   Almost every cartridge inserted leaked or immediately allowed CO2 to escape all at once. The item appears to be the same as provided with the pistol, which works fine, so obviously a defect. And of course, they are now out of stock at umarexoutlet.com so I cannot order a replacement. Kind of expensive as well.