Much better than buying a new slide - ADE Advanced Optics RD3-015 PRO Shake Awake 1x Reflex Red Dot w/SAR9 Optic Mount Plate

I considered several ways to put an optic on my SAR9. I could have paid to have the factory slide machined, purchased another slide, or tried a dovetail adapter. I went with this package because it was the least expensive and easiest to reverse.

I'm glad I did. The plate is machined well and locked into the dovetail securely. I used thread locker on the appropriate screws and checked everything after my first range session. Nothing had loosened.

The RD3-015 PRO itself has been a pleasant surprise. The window is large enough that I don't feel like I'm searching for the dot every time I present the pistol. The shake-awake feature is also something I didn't think I would care much about, but now I really like it. I can leave the sight ready and movement wakes it up automatically.

After several trips to the range, zero is still where I set it. I don't expect a budget optic to have every feature of a premium duty sight, but for a recreational SAR9 setup this gives me everything I was looking for.