Rohrbaugh Products and Accessories > Gunsmithing or Modifications for your Rohrbaugh

Bob Cogan

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Venus:
I spoke with someone at the company about porting and they said that they had it done and it made no difference with shooting the gun.  Also in the manual it states that any modification made to the gun voids the warranty so I would call the company first before doing any work... 

MRC:
I recently picked up a R9 that had been customized by Cogan. 

It has the chrome slide and frame, checkered front and back strap, and checkering on the front of the trigger guard.  The sights were drilled and painted with red dots.  The pistol also has Cogan's double porting system.

It is the best looking Rohrbaugh I have ever handled.

It was a nice winter day in Iowa so I took it and another R9 to the range along with my chronograph.  I have always wondered how much the porting hurt velocities and how much it helped with recoil.

First, here is the velocities of the two pistols with three different factory loads.

Chronograph tests standard R9 vs Cogan Custom Ported R9

Federal Hydra Shoks,   124 grain  - Std R9  -   964 fps,  SD  - 14 fps
                                                  -Ported R9 – 964 fps, SD -  5 fps

Gold Dot  124 grain   - Std R9  -  1021 fps,  SD – 21 fps
                                -Ported R9  -  1009 fps,  SD – 14 fps

Gold Dot 115 grain   -Std R9  -  1062 fps,  SD – 12 fps
                               -Ported R9  -  1062,  SD – 18 fps

As you can see, the velocities were nearly identical.  Now a before and after porting would be the best test but that was not possible here.  I was pleasantly surprised.

As far as noise goes, I was outdoors and I could not tell any difference with muffs on.

As far as recoil reduction, I would guess at about 20%  to 30%.  This surprised me also and the porting really took the snap out of the 124 grain Gold Dots.

I had no failure with either gun and I must say I am very impressed with the Cogan Gun.

PhilZ:
MRC, thanks for the post.  I really like real life reviews of custom Rohrbaugh mods.  I have a pup I bought from someone on the forum that has a tan cerakote finish that essentially made the gun non-functional.  The finish is so thick I can hardly move the slide.  I want to turn this into a completely personalized Rohrbaugh.  I previously thought that pimping out a Rohrbaugh was like putting spinner rims on a Ferrari, but this pup is so screwed up, I need some ideas to bring it back to life.  I've always loved the blue VZ cf grips.  I'm thinking about a Robar NP3+ finish.  I will post before and after picks, but I'd love some ideas for a grossly customized  Rohrbaugh.  No spinner rims, but anything goes.

MRC:
Everyone here has seen the Cogan Customs.  Here is mine with some different grips.

The right side is standard Rohrbaugh Black Carbon Fiber and the left is some Custom Hogue grips submitted to Rohrbaugh.  I bought them from Eric.  I really like the looks of them.

MRC:
Right side

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