Ruger 77/17 9 round .17HMR/.22WMR magazine JMX-1

The JMX-1 is the Ruger factory nine-round magazine for the 77/17, 77/22 Magnum, 96/22  Magnum and 10/22 Magnum rifles.

Based on Ruger’s popular rotary magazine design the magazine features a steel follower and takes both .17HMR and .22WMR rounds.