I got the Sparc when PSA's sale for $160 shipped. The StrikeFire has Green & Red dot. Bigger design just like Aimpoint Patrol. While the Sparc's model is just like Aimpoint H1/T1. Not exactly the same, just so u know roughly the idea what it looks like
. I believe both come with magnifier. Sparc has 3 height of riser mounts. I haven't tested the Sparc yet, it's still in my drawer. I just love shopping when deals are good. Lol.