Sig Sauer P320 Compact 9mm vs Sig Sauer P365 X-Macro 9mm

Both are 9mm Sig pistols with polymer frames, Nitron-finished stainless slides, factory night sights, a factory optic cut and two magazines in the box. The separation is size and capacity. The Sig Sauer P365 X-Macro 9mm carries 17 rounds to the Sig Sauer P320 Compact 9mm's 15, weighs 5.1 oz less (21.5 oz vs 26.6 oz), runs 0.65" shorter overall (6.6" vs 7.25") and 0.15" narrower (1.1" vs 1.25"), and its trigger is listed 1 lb lighter (5.5 lb vs 6.5 lb). The P320 buys that back with a 0.8" longer barrel (3.9" vs 3.1"), a 1.5" longer sight radius (6.6" vs 5.1") and a $314.99 lower MSRP ($515.00 vs $829.99).

Pick the Sig Sauer P320 Compact if:

• MSRP is $314.99 lower ($515.00 vs $829.99)
• You want the longer 3.9" barrel and 6.6" sight radius for range and duty use
• You want the modular fire-control unit and the option of swapping grip modules

Pick the Sig Sauer P365 X-Macro if:

• You want two more rounds on board (17 vs 15) in a smaller package
• Carry weight matters: 21.5 oz against 26.6 oz, and 0.15" less width
• You want the lighter listed trigger (5.5 lb vs 6.5 lb) and XRAY3 day/night sights

The X-Macro is the smaller, lighter gun that still holds more rounds; the P320 Compact is the longer-sighted, cheaper one. The choice is whether the extra 5.1 oz and 0.65" of length are worth the longer barrel and the lower price.