Keres’ PRO EXTENDED magazine release features a patent pending design that improves magazine release access and indexing, allowing for faster magazine changes with enhanced ergonomics and comfort.
SIG Sauer produced two different version of their magazine release for the P320. Keres Dynamics is proud to offer our PRO EXTENDED magazine release in two generations to be compatible with both SIG Sauer designs. To identify which version you have, look for the following: