Experience unparalleled performance with the Magpul Industries MAG556-MCT PMAG 30 AR/M4 GEN M3 Window. This 30-round polymer magazine is engineered for optimal reliability and compatibility with AR15/M4 systems. Featuring transparent windows for quick round count assessment and advanced material technology, the GEN M3 Window is built to withstand harsh conditions and exceed military specifications. It is not only optimized for Colt-spec firearms but also compatible with various other platforms, enhancing its versatility. 30-round reliability and no stoppage Anti-glare translucent Mag Level windows on both sides of the body Painted indicator on the spring for easy determination Next-generation impact and crush-resistant polymer construction Anti-tilt, self-lubricating follower ensures reliability Constant-curve internal geometry & over-travel insertion stop on spine Dimensions allow for wider compatibility with non STANAG 4179 platforms Upgrade your firearm's performance while ensuring seamless operation with the PMAG 30 GEN M3 Window.