Velocity Defense for Sig P320 Recoil Spring and Guide Rod Kit. This kit replaces the one-piece OEM guide rod assembly, giving the user more tuneability with compensators and various types of ammunition.
Available for the Sig P320 C and Sig P320 F variations.
Velocity Defense for Sig P320 C Spring/Guide Rod Kit Includes:
- Flat Wire Guide Rod and Bushing
- 4 Color-Coded Flat Wire Springs – 12#(Red), 14#(Orange), 16#(Yellow), 18#(Green)
- Compatible with:
- Sig Sauer P320 Compact
- M18
- P320 Legion Carry
- P320 AXG
- P320 Spectre Comp
Velocity Defense for Sig P320 F Spring/Guide Rod Kit Includes:
- Sig P320 F Guide Rod
- 2 Color-Coded Chrome Silicon Springs – 12.5#(Yellow), 14#(Red)
- Compatible With:
- M17
- P320 Full Size


Jonathan Echevarria (verified owner) –
Just what I was looking for to make my compensated setup work. It also helps that this kit comes with multiple springs for different types of tuning.
Tanner Slack (verified owner) –
I wish I could give this thing zero stars. There’s zero instruction on how to assemble this thing. Paper or video. Absolutely trash. I shouldn’t have to take parts to a gunsmith to assemble.
thinh.ke.la (verified owner) –
Killer Innovations carrying some of the high quality accessories on the market. Also, the customer service is awesome, well packaged and fast shipping with tracking. I’m very impressed.
I’ve my Flux Legion tuning with the full size yellow spring 12.5# and the quality guide rod, and with this setup make suppressing works flawlessly. The OEM spring is too much weight for suppressing.