Sig Sauer P320 357 cal for sale
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Sig Sauer Complete Fire Control Unit for 9mm/357 SIG/40 SW P320 Pistols - 8900160
Brand:
Sig Sauer
Caliber:
.357 Sig
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Sig Sauer P320 Nitron Carry .357 Sig Semi-Automatic Pistol, Stainless - 320CA-357-BSS
Brand:
Sig Sauer
Action:
Double Action
Barrel Length:
3.9"
Caliber:
.357 Sig
Capacity:
14
Finish Per Color:
Black
Marketplace Insights
★ 4.7/5
based on 20 customer reviews across 3 variants from 15 retailers
Highly praised P320 FCU with excellent trigger quality and customization potential, though premium pricing relative to complete firearms is a noted concern.
What customers like
Trigger Quality45%
trigger break and slight take up is consistently repeatable
Build Customization35%
endless possibilities when it comes to configuration
Quality & Reliability35%
quality, fit and finish is perfect
Easy Configuration25%
Fits like a glove. Completed my X5 build
Excellent Customer Service10%
Quality product and customer service. Buy with confidence
Common concerns
High Price vs Complete Gun15%
$350 price seems high when you can get a complete P 320 for about $500
Condition & Packaging Issues10%
the box was opened when i received item
Frequently Asked Questions
Sig Sauer P320 357 cal for sale
Does Sig Sauer make a 357 SIG?
Yes, Sig Sauer makes .357 SIG pistols. Models include the P226, P229, and P239 chambered in this caliber. Notably, Sig Sauer also developed the .357 SIG cartridge itself, in partnership with Federal Premium, in 1994.
Can you change the caliber of a P320?
Yes. Sig Sauer offers Caliber X-Change kits for the P320 that let you swap to different calibers like .357 SIG or .40 S&W. Each kit includes a complete slide, barrel, and magazine. You keep your grip module and fire control group, making conversion quick and affordable.
What is the best 357 SIG pistol?
"Best" depends on your priorities. The Sig Sauer P320 ranks among the top choices for .357 SIG, alongside the P226 Legion for accuracy and the Glock 31 for value. Consider triggers, ergonomics, and intended use—carry, competition, or home defense—to find the right fit.
Is the Sig Sauer P320 Compact a good gun?
Whether it's "good" depends on your needs. Reviewers consistently praise its reliability, accuracy, and ease of maintenance. Law enforcement and military adoption validate its performance. Pricing typically runs $350–$584. It's a solid, dependable compact pistol that works well for most shooters.