Sig Sauer P320 Full Size .40 .45 .357 15 lb Guide Rod Recoil Spring Assembly, RSA-320F-9

Maintain factory-level performance and control with the Sig Sauer 15 lb. Guide Rod Recoil Spring Assembly (Part# RSA-320F-9) for P320 Full Size pistols chambered in .40 S&W, .45 ACP, and .357 SIG. This OEM dual-spring assembly is engineered for reliable cycling, optimal slide timing, and improved recoil management; ideal for high-round-count users or anyone looking to restore their setup to factory spec. Perfect for routine maintenance, spring tuning, or replacing a fatigued component; this assembly ensures your P320 full size continues to operate with smoothness, durability, and precision. Get yours at NDZ Performance today!

Features:

• Factory Sig Sauer 15 lb. recoil spring assembly for P320 Full Size pistols.
• Supports .40 S&W, .45 ACP, and .357 SIG calibers.
• Dual-spring design for consistent performance and recoil control.
• Ideal for part replacement, tuning, or routine maintenance.
• OEM drop-in fit, no gunsmithing required.
• Backed by Sig Sauer’s manufacturing quality.

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.