Ladies and gentlemen, I give you the Adjustable Picatinny Rail (APR).



For those not familiar with the APR idea, I advise you read this thread:
Idea: Adjustable Picatinny Rail

In a nutshell, paintballs drop in their trajectory over a short distance due to lack of speed and gravity. Most sights, red dots, and scopes were not designed with paintballs in mind. So once a sight got dialed in (if it even got dialed in), it would only be good for one distance. That meant guessing at any other distances.

The APR was designed with constantly changing trajectories in mind. No matter what the distance is, you can easily adjust the rail so that your sight is always dialed in. Even people with an Apex can make use of this. Granted, paintballs aren't the most accurate projectiles (they are a ball, for gods sake) but the APR can help eliminate some of the guess work.

It mounts onto any picatinny rail and is secured with bolts. The top of the rail also has a picatinny rail on top, for sight mounting. The sides of the APR has a bolt, where it pivots from, and an adjustment thumb screw. The thumb screw allows quick and easy changing of the angle required and secures it in place. The APR can be adjusted from 0 to 8 degrees, which is more than most paintball guns will need. Through my tests, with and without an Apex, no more than 5 degrees should be required but it can handle more for custom configurations. On both sides of the rail are angle indicators. The thumb screw guide has a pointer to show what angle you are currently set at. And for the lefties, both guides can be flipped over so that they can adjust the rail with their right hand.

I had it made of ABS-M30 plastic, which is 70% stronger than regular ABS and also makes it light. Since it was a prototype and was built with rapid prototyping, it was a layer additive process. In other words, its has lots of steps and isn't perfectly smooth. For how FDM works, watch this video: YouTube - How FDM Machine Works I had to do quite a bit of material removing and sanding due to this rough texture and the fact that measurements aren't exact. After sanding, test fitting, and a little grease, the whole thing works real smooth and one handed. It functions just like I had hoped. Here are some pics of it at 0, 5, and 10 degrees.





Unfortunately, its raining here and will for the next few days. So I haven't even had a chance to test this bad boy out but I'm supremely confident that it will work perfectly. In little over a week, it will also get field tested at Training Day IV at Fox Paintball. So I'll be able to give some real world feedback on its performance. If all goes well, I'll just have to approach some manufacturers to see if anyone is willing to make them for the public. I really hope that everyone can take advantage of this and not just me.

Here are some other pics that I took to showcase it.






UPDATE: Killjoy Industries has finally brought a version of the APR to life and is now accepting orders and preorders (for a limited time). Look in the Merchant's Corner for the thread.

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Odin, Amazing! I Loved the Idea from day one, and i am thrilled with the way it turned out, REALLY AWESOME, Rep4U

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A few friends from my homefield: "Ok,now, the bunker is built, but the roof is white, quite obvious to see it..."
"We could spray it..."
"Too expensive!"
Me: "Ok,from now on,we only use green paintballs!"

Odin, PATENT IT !!!!!!! then market it and I WILL BUY ONE !

edit : YOU GOTS DA REP FOR DIS !

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Speedball; choice of the Ritalin generation !

Wow!!!!! Good work

Great job, yes I totally remember that thread!
Do you have room to make it lower profile?

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So awesome! Great job.

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If there is, there's only a few millimeters worth. The longer the rail is, the more vertical space is needed to achieve the same angle. Pythagorean theorem right there. Actually, I kind of wished it was a little bit taller because since I got the stock, I need to bring my head lower. The APR helps but the red dot could be a bit taller, IMO.

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You're amazing. Very cool. Patent this and sell them.

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Great work Odin! Big time !!!
Really clean looking in real life. Better than the computer model! I think you have a winner!

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Courage can exist only together with your fear.

We looked into that and we can't find an affordable price. It is really beautiful.

I kinda feel like it is like 1/64 my baby, since we bounced ideas off of each other. Wonderful though.

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