I had an opportunity to shoot the new GLOCK 30S today. The subcompact .45 was designed as a backup gun for LEOs carrying G21 and G21SF sidearms. The idea is that it chambers the same round and can use the longer spare magazines if needed. The G30S uses a 10 round dual stack magazine so you can also run one in the chamber for a total of 11 rounds. Once again, the plus side is that it will accept the G21′s 13 round magazines. It incorporates the SF body of the G30 along with a slim slide of the G36. As you know, the G36 uses a special single stack magazine so it isn’t compatible with its bigger brothers.
However, the G30S remains a stubby, fat dual stack pistol. Even the SF variants of GLOCK pistols aren’t exactly thin. It’s great for what use as a backup but I don’t look at it as a primary weapon due to its size. For example, in spite of its subcompact size, GLOCK has adopted a familiar work around. In order to accommodate all three fingers on the pistol grip G30S magazines feature an extension. Then, you’ve got the shorter barrel and associated sight radius. It’s a niche weapon for a niche application and I’m glad they made it for those needing a primary sidearm compatible backup piece. It’s really designed to be paired with a G21(SF). It’s just not something I would expect everyone to go out and purchase for EDC.