sbpetrok
02-18-2002, 05:29 PM
There are several threads on the site regarding Mojo aperture ("peep") sights. I decided to start one specifically for those of us who have used them to post our reviews.
A lot of the other threads describe the user's difficulty installing the sight. I did not encounter any problems. The spring under the leaf sight is very strong and must be compressed. I took a flathead screwdriver, wrapped a torn-off corner from a paper towel around the tip about 5 times, and folded it back along the shaft. This prevented marring of the metal. Push down (put your weight onto it!) and pull the leaf sight backwards. It slips right out. You may have to wiggle it left-right to get it to start moving.
Installing the mojo sight was the same thing in reverse. I folded the paper towel back the other direction to get "new" cushion for the ensuing pushing (I almost poked the screwdriver all the way through in the removal process). Depress the spring and slide the Mojo sight forward. With a good effort, the "hinge pins" will find their slot. Installation took only about 10 minutes, once I decided on the padded screwdriver approach.
Oh, did I mention I'm installing the sight on a 2001 model SAR-1? Well, now I have!
Took it to the range with about 60 rounds of ammo. Selected a 50 yard bench. The first shot was on the paper, high and left. Elevation and windage are adjusted by the use of two small set screws. The necessary allen wrench is included with the sights, and fits nicely in the "butthole stock" tool kit tube.
The Mojo instructions say a full turn of the screw will adjust the elevation of the strike point by about 4" at 100m. I was about 4" high at 50m, so I backed the screw out two full turns. I immediately see a problem. The set screw is mounted immediately behind and below the peep sight, on the right side, as seen from the shooter. Backing the screw out this much causes the upper threads of the set screw to occlude the bottom right quadrant of the aperture.
okay, I was a little brain-locked by the "new addition" to the gun, and forgot the basics. I would NORMALLY zero my elevation by adjusting the front sight. By adjusting the front sight out (up) I'm able to raise the rear sight, thereby lowering the set screw out of the sight picture. That's what I get for following directions to the exclusion of what I already know...
I have never used peep sights before, but as I understand it, your eye "naturally" aligns the front sight "centered up" within the aperture. There was a clearly evident learning curve/familiarization period. By the time I shot my sixth round of ten, my grouping was improving markedly. My initial group was pretty badly scattered, so improvement is a relative term. ;-)
My last group of 10 was about a 5" group, including the fliers. Strangely enough, I seemed to be MORE accurate with more rapid shooting. I think the whole "battle sights" concept is best captured by Chevy Chase's immortal words... "Be the ball, Danny"! In other words, think less, get the front sight on target and fire away.
I'm very happy to endorse the Mojo sights. Peep sights are cool, and work intuitively. I'm sure I can improve my performance with them with more practice at "not aiming so much". The Mojo sights are well made, and easy to install, at least in this instance. The placement of the set screw COULD become a problem if you're out of room for adjustment of the front sight elevation. By POTENTIALLY BLOCKING the bottom-right portion of the aperture, you could be prevented from adjusting the windage/elevation as needed to pull your strike point down and right. With judicious use of the front sight adjustment, that shouldn't become a problem, though.
I called Mojo and left a message. Tim called me back within the hour and is sending a shorter screw. With that, I can highly recommend the product AND their excellent customer service!
A lot of the other threads describe the user's difficulty installing the sight. I did not encounter any problems. The spring under the leaf sight is very strong and must be compressed. I took a flathead screwdriver, wrapped a torn-off corner from a paper towel around the tip about 5 times, and folded it back along the shaft. This prevented marring of the metal. Push down (put your weight onto it!) and pull the leaf sight backwards. It slips right out. You may have to wiggle it left-right to get it to start moving.
Installing the mojo sight was the same thing in reverse. I folded the paper towel back the other direction to get "new" cushion for the ensuing pushing (I almost poked the screwdriver all the way through in the removal process). Depress the spring and slide the Mojo sight forward. With a good effort, the "hinge pins" will find their slot. Installation took only about 10 minutes, once I decided on the padded screwdriver approach.
Oh, did I mention I'm installing the sight on a 2001 model SAR-1? Well, now I have!
Took it to the range with about 60 rounds of ammo. Selected a 50 yard bench. The first shot was on the paper, high and left. Elevation and windage are adjusted by the use of two small set screws. The necessary allen wrench is included with the sights, and fits nicely in the "butthole stock" tool kit tube.
The Mojo instructions say a full turn of the screw will adjust the elevation of the strike point by about 4" at 100m. I was about 4" high at 50m, so I backed the screw out two full turns. I immediately see a problem. The set screw is mounted immediately behind and below the peep sight, on the right side, as seen from the shooter. Backing the screw out this much causes the upper threads of the set screw to occlude the bottom right quadrant of the aperture.
okay, I was a little brain-locked by the "new addition" to the gun, and forgot the basics. I would NORMALLY zero my elevation by adjusting the front sight. By adjusting the front sight out (up) I'm able to raise the rear sight, thereby lowering the set screw out of the sight picture. That's what I get for following directions to the exclusion of what I already know...
I have never used peep sights before, but as I understand it, your eye "naturally" aligns the front sight "centered up" within the aperture. There was a clearly evident learning curve/familiarization period. By the time I shot my sixth round of ten, my grouping was improving markedly. My initial group was pretty badly scattered, so improvement is a relative term. ;-)
My last group of 10 was about a 5" group, including the fliers. Strangely enough, I seemed to be MORE accurate with more rapid shooting. I think the whole "battle sights" concept is best captured by Chevy Chase's immortal words... "Be the ball, Danny"! In other words, think less, get the front sight on target and fire away.
I'm very happy to endorse the Mojo sights. Peep sights are cool, and work intuitively. I'm sure I can improve my performance with them with more practice at "not aiming so much". The Mojo sights are well made, and easy to install, at least in this instance. The placement of the set screw COULD become a problem if you're out of room for adjustment of the front sight elevation. By POTENTIALLY BLOCKING the bottom-right portion of the aperture, you could be prevented from adjusting the windage/elevation as needed to pull your strike point down and right. With judicious use of the front sight adjustment, that shouldn't become a problem, though.
I called Mojo and left a message. Tim called me back within the hour and is sending a shorter screw. With that, I can highly recommend the product AND their excellent customer service!