The PMAG (Polymer Magazine) by Magpul is a high-quality, lightweight, durable, and reliable magazine for firearms. It is made of a polymer material, which provides a great combination of strength and durability while remaining lightweight. The PMAG has a number of features that make it stand out from the competition. It is designed with a high-tension stainless steel spring for increased reliability and consistent feeding. The magazine also features an anti-tilt, self-lubricating follower that ensures smooth loading and consistent reliability. Additionally, the magazine's impact-resistant polymer construction ensures it can withstand harsh conditions and heavy use. The PMAG is available in a variety of styles and capacities for various firearms, including AR15/M4, M14/M1A, AK47/AKM, and H&K G3/MP5. The PMAG is designed to provide excellent reliability and performance for any shooter who needs a reliable magazine for their firearm.