The short answer

The Springfield Echelon Gen 1 9mm COG Optic-Ready Pistol w/ Tritium Sights and the SIG Sauer P320C Gen 1 9mm Night Sight Compact - Versatile Defense are both chambered in 9mm. The SIG Sauer P320C Gen 1 9mm Night Sight Compact - Versatile Defense is the more affordable option, starting at $419.99 versus $549.99. On the spec sheet, the Springfield Echelon Gen 1 9mm COG Optic-Ready Pistol w/ Tritium Sights carries more rounds (20 rounds vs 15 rounds) and the Springfield Echelon Gen 1 9mm COG Optic-Ready Pistol w/ Tritium Sights is lighter (24.5 oz vs 26 oz).

Frequently asked questions

What is the difference between the Springfield Echelon Gen 1 9mm COG Optic-Ready Pistol w/ Tritium Sights and the SIG Sauer P320C Gen 1 9mm Night Sight Compact - Versatile Defense?

Both are chambered in 9mm. They differ mainly in capacity (20 rounds vs 15 rounds), barrel length (4.5" vs 3.9"), overall length (8" vs 7.2") and weight (24.5 oz vs 26 oz).

Which is cheaper, the Springfield Echelon Gen 1 9mm COG Optic-Ready Pistol w/ Tritium Sights or the SIG Sauer P320C Gen 1 9mm Night Sight Compact - Versatile Defense?

The SIG Sauer P320C Gen 1 9mm Night Sight Compact - Versatile Defense is currently the cheaper of the two, with a lowest listed price of $419.99 compared with $549.99 for the Springfield Echelon Gen 1 9mm COG Optic-Ready Pistol w/ Tritium Sights. Dealer prices are live and can change.

Which holds more rounds, the Springfield Echelon Gen 1 9mm COG Optic-Ready Pistol w/ Tritium Sights or the SIG Sauer P320C Gen 1 9mm Night Sight Compact - Versatile Defense?