FN 509 Compact 9mm vs Walther PDP Compact 9mm

Both are compact 9mm duty guns with interchangeable backstraps and two magazines. The Walther PDP Compact 9mm is the larger and better-equipped of the two: three more rounds (15 vs 12), a 0.3" longer barrel (4.0" vs 3.7"), 0.8" more sight radius (6.4" vs 5.6"), a factory optic cut where the FN 509 Compact 9mm has none, and an adjustable rear sight, while weighing 1.1 oz less (24.4 oz vs 25.5 oz). The FN is the smaller package at 6.8" overall and 5.0" tall, against 7.5" and 5.4", and lists $60.00 lower ($639.00 vs $699.00).

Pick the FN 509 Compact if:

• You want the shorter, shorter-gripped gun — 6.8" overall and 5.0" tall
• Twelve rounds is enough and concealment is the priority
• You want the Hi-Viz front sight and will run irons, saving $60.00

Pick the Walther PDP Compact if:

• You want a factory optic cut rather than a milled slide
• Fifteen rounds instead of twelve
• You want the 4.0" barrel, 6.4" sight radius and 1.1 oz less weight at 24.4 oz

The trigger weight is a wash, so this is size against capability. The FN is 0.7" shorter and 0.4" lower to hide; the PDP gives three rounds, more sight radius and the optic cut for $60.00 more.