This is the ProMag Taurus TX22 .22LR 34-round extended magazine. 

Whether you’re heading to the range or plinking in your backyard, this 34-round extended magazine from ProMag will keep the fun running longer!

Constructed from a proprietary DuPont Zytel-based polymer, the magazine remains extremely lightweight while delivering superior durability. Inside, a heat-treated chrome silicon wire spring and an injection-molded polymer follower keep it running smoothly through every round. 

You’ll also find side-facing load assist tabs and witness windows that make reloading and keeping track of your remaining capacity effortless. On top of it all, each magazine is made in the USA and backed by a lifetime warranty!

It’s hard to beat the bang for your buck that these magazines deliver, so we suggest grabbing a few while you can!