Description
Matrix Precision Arms Aluminum Mainspring Seat for Sig Sauer, E2 Grip
This mainspring seat is aluminum, available either unanodized silver, or with an anodized finish in black, blue, or red. Unlike the original plastic one, it will never break.
Optional installation tool available. Select “With Install Tool” in the drop down selection menu.
Models:Â P220, P226, P228, P229 (E2 Grip)
Manufacturer: Matrix Precision Arms






BD (verified owner) –
Fit perfectly in my P226. No idea why Sig would use plastic on such an important part but it isn’t plastic anymore. Fit and finish was perfect, shipping was quick. Ordered on Monday, installed it on Thursday.