Ninja Reg Rebuild Kit
Ninja X and Flex Reg Rebuild Kit
$22.00 – $23.00Price range: $22.00 through $23.00Select optionsThis Kit Contains All Of The Most Consumable Parts in a Ninja X Reg, Ninja ProV2, and Flex Variants
The Small section of the piston is 7.90mm in diameter.- 1 – User-selectable Burst Disk (1.8k, 3k, 5k, 7.5k
- 2 – Upper Small Piston O-Ring (Small Piston Kit)
- 2 – Upper Large Piston O-Ring (Large Piston Kit)
- 1 – Small Lower Large Piston O-Ring
- 2 – Regulator Bonnet O-Rings
- 1 – Fill port o-ring
- 1 – Piston Lower Ball Seat
It is strongly recommended that you open your egulator to determine which piston size you have. Below is a photo of both common Ninja Piston sizes side by side.


