Upgrading the Big Rock’s Sights With Help From Scott Igert of Modern Antique Firearms

The Rock Island Armory Model 52000 Pro Match Ultra 6″ – 10mm pistol is affectionately known as the “Big Rock” to folks who own one.  When I got mine, one of the few things I wanted to improve were the sights. The front fiber optic segment was a dim red and the back white dots were just paint.  When I’d sight down the pistol, the sights didn’t really “jump” out and catch my eye the way I would like.


Scott Igert, owns Modern Antique Firearms, in Benton Harbor, MI, and is a good friend of mine. I told him about the sights because I knew he could upgrade them to be more visible. So, one day I ook the pistol to his shop and and snapped some photos while he worked his magic.  Now Scott does this all the time so he has all the supplies on hand and knows exactly what to do, which was real obvious as I watched and he explained what he was doing.

First up was to replace the front fiber segment. He showed me how the fiber is held in place by flared ends that were created by heating the fiber.  He simply snipped the fiber in the middle being careful not to hurt the rest of the sight that held it in place and then just pulled it out.

Next, we talked about the color of fiber I wanted and it was bright orange. He had these big lengths of fiber in different colors and diameters that he picked through to get the one that would fit the Big Rock, cut it longer than needed and scraped it until the outside diameter was such that it could slide into the old sight base’s holders for the fiber.

Scott gave the fiber segment a quick spritz of weapons oil to get it to slide into the holder. He then trimmed the fiber so there was still enough protruding to melt into the bulged shape needed to secure the fiber in place. With that, the front was done.

For the rear, he selected a very eye catching yellow paint to fill the two round depressions that were painted white. He used a small rod to apply the paint and a business card to wipe away the excess and let it dry.

Wow – what a difference now. The combination is eye catching and a huge improvement.  I’ll need to get an after picture that does the new sight justice.  If you are disappointed with your pistol sights, definitely contact Scott.

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