Sig Sauer P320 Full Size .40 .45 .357 16 lb Guide Rod Recoil Spring Assembly, RSA-320F-4035745

Maintain smooth, reliable cycling in your full-size P320 with the Sig Sauer OEM 16 lb. Guide Rod Recoil Spring Assembly, (part# RSA-320F-4035745). Engineered for use with .40 S&W, .45 ACP, and .357 SIG models, this factory component ensures proper slide timing, manages recoil, and preserves internal longevity through consistent and controlled operation. Trust factory-grade performance; equip your P320 Full Size with the OEM 16 lb. Recoil Spring Assembly, available now at NDZPerformance.com.

Features:

• OEM Sig Sauer component: Factory-spec reliability and fit.
• Compatible with P320 Full Size in .40, .45, and .357, drop-in ready.
• 16 lb. spring weight: Optimized for recoil control and smooth cycling.
• Extends firearm service life: Supports proper slide function under stress.
• Ideal for routine maintenance or part replacement.

See our complete line of Sig P320 Products here

Note: NDZ always recommends any part be installed by a qualified and trained gunsmith. NDZ promotes the use or safety practices and gear when working on any firearm.