You’ll notice in the picture, the magazine on the left will only hold six rounds, the one on the right I get a full 17 rounds in. I’ve tried two different types of ammo, and the results are on the same. it doesn’t matter if I use a loader or if I try to load them manually. The spring on the defective one only goes down so far. Both of the 30 round clips that I purchased work great as does the other 17 round clip. This item was just sent to me and the product just came out of the packaging. My emails to classic firearms: I am returning this item to you for three reasons. 1. I purchased it from you and not ProMag, you benefited from the sale. 2. The product you sent me was defective out of the box. It’s a 17 round, but you can only get six rounds in it. 3. I tried your other route, but ProMag has not returned any phone call or email. I do not expect a restock charge, for all of the above reasons, plus you cannot restock a defective product. The product will be returned tomorrow. Be Regards, ……,.,,,,,……..,,,,,,,………,,,,,,,,,,,,,,,,,,,,,,,,,,,,, I am sorry to hear about the issue with your order. I have generated a return merchandise authorization (RMA) for this item. Once received, we will inspect the item and issue a refund back to you in accordance with our terms of service. This refund must be issued in the same manner we received payment on the original order. Returns received after 90 days of purchase date will receive store credit. You could be subject to a 15% restocking fee, a 3% credit card fee, and the shipping fees would be deducted from your refund as well should your order be returning for the following reasons including but not limited to: -Mistakenly ordered the wrong item -Do not want the item or your FFL will not transfer the firearms to you. -There is an issue with the item that has a manufacturer's warranty and has decided to not utilize the warranty. Please see our Terms & Conditions for all issues that would warrant any of the fees listed above I have requested a return label, which will be coming in a separate email. Items must be returned in the same condition as they were received. If the item is found to be inconsistent with the condition and description advertised, the cost of return labels would be deducted from the refund. Sincerely, Victoria Customer Service Rep Classic Firearms 704-774-1102 Classicfirearms.com Victoria (Classic Firearms) Oct 6, 2021, 8:27 AM EDT Good morning, Most manufacturers are extremely backed up, and for that reason it usually takes 10-15 days for them to reply to an email so we do highly recommend you wait for ProMag. However, as per our terms and conditions that you agreed to upon the sale, if you do choose to return it, it's very likely you will be charged our fees. We are very sorry for any inconvenience and hope you have a wonderful day. Sincerely, Victoria Customer Service Rep Classic Firearms 704-774-1102 Classicfirearms.com