Sig Sauer P365 TacPac 9mm vs Springfield Armory Hellcat Pro OSP 9mm

Both are optic-ready striker-fired 9mms with the same listed 5.5 lb trigger pull, so the decision is size against capacity. The Springfield Armory Hellcat Pro OSP 9mm holds 15 rounds to the Sig Sauer P365 TacPac 9mm's 12, with 0.6" more barrel (3.7" vs 3.1"), 0.8" more overall length (6.6" vs 5.8") and 0.5" more grip height (4.8" vs 4.3"). That adds 3.2 oz (21.0 oz vs 17.8 oz). The TacPac is the slightly wider of the two at 1.1" against 1.0". The TacPac carries a manual safety and XRAY3 day/night sights front and rear, three magazines, and a $70.01 lower MSRP ($599.99 vs $670); the Hellcat Pro uses a trigger safety, tritium front with Tactical Rack U-Dot rear, and two magazines.

Pick the Sig Sauer P365 TacPac if:

• You want the smallest footprint here: 5.8" long, 4.3" tall and 17.8 oz
• You want a manual safety, which the Hellcat Pro does not list
• Three magazines and a $70.01 lower MSRP ($599.99 vs $670) matter

Pick the Springfield Armory Hellcat Pro OSP if:

• You want 15 rounds instead of 12 and a full-hand grip at 4.8" of height
• The 3.7" barrel and 1.0" width suit you better than 3.1" and 1.1"
• You are fine carrying 3.2 oz more (21.0 oz vs 17.8 oz) for the longer grip

With identical trigger weights and optic cuts on both, this is the usual micro-versus-micro-plus trade: three more rounds and a longer grip on the Hellcat Pro, or 0.8" less length and 3.2 oz less weight on the P365.