I think that model sig is a bit smaller than either the shield or LC9s. I guess it all depends on how small you need it to be. I would have gotten mine but was hung up on needing a thumb safety...I'm old school. It had to be ordered and they are hard to find right now since they put the gun out recently without a safety as requested by lots of people. Same thing with the LC9s pro which doesn't have the thumb safety. I guess they are all looking to compete with Glock.