Product Details
If your Gen 4 Glock 21 is feeling sluggish or you're noticing the recoil isn't as crisp as it used to be, this OEM recoil spring assembly is the real deal. It's the factory part, made by Glock themselves, so you know it'll fit and work exactly right. Swapping it out is straightforward enough if you're comfortable taking your gun apart, and it'll have your 21 running like new again.