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Only the rear? On mine the rear came out easily with the Sig sight tool...the front I had to hammer out (and not nicely). It did break but I didn't care as I was putting in night sights. One caveat...the dovetails are oversized for factory Sig sights (if you're planning on going that route). I ended up JB Welding mine in.
Guys...that much I had figured...lol. When using a punch to remove it, which side of the slide to you punch from - the side with the decocking lever, or the other side?