What Are the Specs of the G43X by Glock?
Woody's answers are based on published federal and state law. Not legal advice. Consult a licensed attorney for your specific situation.
The Glock G43X is a 9x19mm slimline pistol measuring 6.5 inches overall with a 3.41-inch barrel, 1.1-inch width, and weighing 16.4 oz without magazine. It features standard 10-round capacity with compatibility for 15-round aftermarket magazines.
What This Means for Your Setup
The G43X represents Glock's approach to concealed carry optimization, combining the slimline frame with G48 slide width for a balanced carry profile. For builders considering holster compatibility and carry ergonomics, the specific dimensional constraints matter significantly. The weight distribution and magazine options directly impact both comfort and capacity decisions in your carry setup.
The Detail
The Glock G43X sits in the 9x19mm slimline platform with precise dimensions that define its carry characteristics. At 6.5 inches overall length and 3.41 inches of barrel, you get a compact profile that maintains reasonable sight radius. The 1.1-inch width keeps the grip manageable for concealment while the 5.04-inch height provides adequate grip real estate.
Weight specs show 16.4 oz for the bare pistol, jumping to 18.7 oz with an empty magazine installed. This puts about 2.3 oz of weight in the magazine alone, which matters when you start loading rounds and considering extended magazine options. Glock ships this with 10-round standard capacity magazines, though the notes indicate a shift to 15-round magazines as standard starting May 2026.
The aftermarket magazine landscape opens up interesting capacity options through Shield Arms S15 magazines, which bump capacity to 15 rounds but require an aftermarket magazine release for proper function. This modification path gives you nearly 50% more capacity in the same frame size, though it does involve swapping factory components.
The slimline frame paired with G48 slide width creates a specific balance point that affects both shooting characteristics and holster compatibility. Understanding these exact measurements becomes critical when selecting leather or kydex holsters, as the G43X occupies its own dimensional space in the Glock ecosystem.
Build Impact
These dimensions directly determine holster selection and carry position viability, with the 1.1-inch width being particularly relevant for appendix carry comfort. The magazine capacity options and required aftermarket release for higher capacity magazines represent a key decision point that affects both reliability philosophy and local legal compliance.