The 7.62 NATO/.308 Winchester PMAG 20-LR is a cost effective, high reliability magazine for SR25/DPMS-pattern rifles, featuring true 20-round capacity, constant-curve body and snap on dust/impact cover. Designed specifically for military-issue Mk11/M110 rifles and milspec ammunition (including M118LR), the PMAG-LR is less than half the weight of standard issue steel magazines, and maintains a service life round count approximately equal to the rifle itself. Know the laws in your state regarding High Capacity Mags, we will not ship to NJ, CA, MD, HI, NY, DC, and Parts of IL and IN.