The 7.62x51 NATO (.308 Winchester) PMAG 20LR is a lightweight, cost effective, high reliability magazine for SR25/M110 pattern rifles featuring true 20-round capacity, constant-curve body, and snap on Impact/Dust Cover. Designed specifically for military-issue MK11/M110 rifles and mil-spec ammunition (including M118LR), the PMAG 20LR is less than half the weight of standard issue steel magazines and maintains a service life round count approximately equal to the rifle barrel itself.