This is the ProMag Mossberg 715T .22LR 25-round magazine. 

If you’re looking for an aftermarket 25-round magazine for your Mossberg 715T that is as reliable as the factory one, look no further. 

ProMag constructed these magazines with durability in mind, using a proprietary DuPont Zytel-based polymer lower and a heat-treated steel upper. Each magazine adheres to precise tolerances and features an injection-molded polymer follower for maximum reliability.

A lifetime warranty accompanies every magazine, so you can rest easy for many years and rounds to come. Whether you want to maximize your range time or varmint eradication capabilities, these 25-round magazines will have you covered. 

Don’t forget to add one or two of these 25-round magazines to your cart before checking out! You won’t regret it.