The 25-round-capacity Magpul PMAG G3 7.62×51 Nato/.308 Win. Magazine with Window is a reliable magazine for SR-25/M110 rifles. Transparent, anti-glare sides and a painted indicator on the spring allow you to easily see how many rounds remain from full to empty. Constant-curve, anti-tilt design provides smooth feeding for enhanced reliability. Ribbed gripping surface and aggressive texturing offer easy magazine handling. Impact-resistant dust cover reduces debris intrusion while also protecting cartridges during storage or transit. Lightweight, crush-resistant polymer construction.