mpeltier Posted January 31, 2007 Share Posted January 31, 2007 After using my Benelli M2 for a few months now with a rear sighting modification I made to the rear of the rib (for slug shooting of course) I thought I would share it with you all. It is very simple, I simply ground a groove in the rear of the rib where it slopes down towards the receiver and then filled the groove with white paint. The resultant sight picture with the fiber optic front sight is similar to the old Berretta 92 sights with two dots, one slightly above the other. My first trip to the range was with a piece of masking tape attached to the back of the rib with a pencil line dead center to make sure the point of aim centered to the barrel was matching the point of impact. In my case with my choke choice it was dead on. I simply used the pencil line as my starting point and started grinding. I started carefully with a dremel abrasive cut off wheel and finished it up with a round gunsmith file. A little at a time and a little trial and error I had the shape to give a perfect dot when sighting down the barrel. When not shooting slugs I do not even notice it is there. Having a spot to index the front sight on has been a tremendous help to making more accurate slug shots. Link to comment Share on other sites More sharing options...
mike_pinto Posted January 31, 2007 Share Posted January 31, 2007 Good stuff and great idea. I hesitate putting a rear flip site on my M2 for the birdshot/slug stages. Thank you for sharing.. Mike Link to comment Share on other sites More sharing options...
ArnisAndyz Posted February 2, 2007 Share Posted February 2, 2007 Necessity is the mother of invention...great idea (one that I'll probably borrow)! I like that it gives a good reference for slugs but doesn't disturb the benifits of shooting a rib. Link to comment Share on other sites More sharing options...
norbs007 Posted February 2, 2007 Share Posted February 2, 2007 Awesome! I am actually in the market for a rear sight for my M2. Thank you very much for sharing. It looks great! Link to comment Share on other sites More sharing options...
jhgtyre Posted February 2, 2007 Share Posted February 2, 2007 This is exactly why I love this forum. Somebody has a great idea that works and we all benefit from it. Thanks, -Larry Link to comment Share on other sites More sharing options...
Jaxshooter Posted February 2, 2007 Share Posted February 2, 2007 Great idea. Thanks for sharing. That is the great thing about the people on this sight. Link to comment Share on other sites More sharing options...
oddjob Posted February 3, 2007 Share Posted February 3, 2007 So simple....and it took how long for someone to figure this out??? Great idea! Link to comment Share on other sites More sharing options...
jnfphd Posted December 4, 2008 Share Posted December 4, 2008 After using my Benelli M2 for a few months now with a rear sighting modification I made to the rear of the rib (for slug shooting of course) I thought I would share it with you all. It is very simple, I simply ground a groove in the rear of the rib where it slopes down towards the receiver and then filled the groove with white paint. The resultant sight picture with the fiber optic front sight is similar to the old Berretta 92 sights with two dots, one slightly above the other. My first trip to the range was with a piece of masking tape attached to the back of the rib with a pencil line dead center to make sure the point of aim centered to the barrel was matching the point of impact. In my case with my choke choice it was dead on. I simply used the pencil line as my starting point and started grinding. I started carefully with a dremel abrasive cut off wheel and finished it up with a round gunsmith file. A little at a time and a little trial and error I had the shape to give a perfect dot when sighting down the barrel. When not shooting slugs I do not even notice it is there. Having a spot to index the front sight on has been a tremendous help to making more accurate slug shots. I've been shooting shotgun for some time, but have never been taught the correct sight picture. Is the correct, or conventional sight picture, to have the bead flush with the vent rib rib, as in your first picture? Link to comment Share on other sites More sharing options...
el pres Posted December 4, 2008 Share Posted December 4, 2008 I'm not I understand flush ?? In that picture the sight is set-up to shoot a slug on paper, the rib is flat to view, the impact is going to be at the very top edge of the front bead, and the rear white paint notch is to line up with the bead right to left for windage. For birshot you just look down the rib, flattening it out and put the bead right on the plate or popper. All this ofcoarse you have to verify for your shotgun as to where yours hits at different distances. You then can adjust the height of the bead to what you want by trying different ones. The only difference from person to person is your cheek weld, or lack of a good one. Your eye is the rear sight when using just the rib and bead. Link to comment Share on other sites More sharing options...
jnfphd Posted December 4, 2008 Share Posted December 4, 2008 (edited) I'm not I understand flush ?? In that picture the sight is set-up to shoot a slug on paper,the rib is flat to view, the impact is going to be at the very top edge of the front bead, and the rear white paint notch is to line up with the bead right to left for windage. For birshot you just look down the rib, flattening it out and put the bead right on the plate or popper. All this ofcoarse you have to verify for your shotgun as to where yours hits at different distances. You then can adjust the height of the bead to what you want by trying different ones. The only difference from person to person is your cheek weld, or lack of a good one. Your eye is the rear sight when using just the rib and bead. Thanks for the info. By "flush" I meant as you described "rib is flat to view". Edited December 4, 2008 by jnfphd Link to comment Share on other sites More sharing options...
glocker21 Posted March 26, 2009 Share Posted March 26, 2009 After using my Benelli M2 for a few months now with a rear sighting modification I made to the rear of the rib (for slug shooting of course) I thought I would share it with you all. It is very simple, I simply ground a groove in the rear of the rib where it slopes down towards the receiver and then filled the groove with white paint. The resultant sight picture with the fiber optic front sight is similar to the old Berretta 92 sights with two dots, one slightly above the other. My first trip to the range was with a piece of masking tape attached to the back of the rib with a pencil line dead center to make sure the point of aim centered to the barrel was matching the point of impact. In my case with my choke choice it was dead on. I simply used the pencil line as my starting point and started grinding. I started carefully with a dremel abrasive cut off wheel and finished it up with a round gunsmith file. A little at a time and a little trial and error I had the shape to give a perfect dot when sighting down the barrel. When not shooting slugs I do not even notice it is there. Having a spot to index the front sight on has been a tremendous help to making more accurate slug shots. Excellent tip...I will be trying that as well on my H&K M1 Super 90 Link to comment Share on other sites More sharing options...
Harry Potter Posted June 24, 2009 Share Posted June 24, 2009 After using my Benelli M2 for a few months now with a rear sighting modification I made to the rear of the rib (for slug shooting of course) I thought I would share it with you all. It is very simple, I simply ground a groove in the rear of the rib where it slopes down towards the receiver and then filled the groove with white paint. The resultant sight picture with the fiber optic front sight is similar to the old Berretta 92 sights with two dots, one slightly above the other. My first trip to the range was with a piece of masking tape attached to the back of the rib with a pencil line dead center to make sure the point of aim centered to the barrel was matching the point of impact. In my case with my choke choice it was dead on. I simply used the pencil line as my starting point and started grinding. I started carefully with a dremel abrasive cut off wheel and finished it up with a round gunsmith file. A little at a time and a little trial and error I had the shape to give a perfect dot when sighting down the barrel. When not shooting slugs I do not even notice it is there. Having a spot to index the front sight on has been a tremendous help to making more accurate slug shots. It is never too late for the good words. Great solution and really nice of you to share it. Thanks a lot. Link to comment Share on other sites More sharing options...
Jesse Tischauser Posted April 15, 2010 Share Posted April 15, 2010 Nice! I'm gonna try this next Link to comment Share on other sites More sharing options...
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