The SIG Sauer P320 is a popular personal-defense pistol choice for many shooters, thanks to its modular frame. However, the sub-compact frame option makes it hard for owners to securely grip their pistol. The Pachmayr SIG Sauer P320 Sub-Compact Grip Extender is an easily installed addition made from durable polymer that is textured to match the design found on the P320's frame. The grip extender comes in packs of two.