I’d like to introduce you to the new Madbull PRI GenIII RIS. It’s the rounded, free-float version of the Precision Reflex, Inc. Delta free-float rail, which is PRI’s signatura triangle-shaped (like a Delta symbol) rail system. This is going to be the type of rail you’ll want to use if you’re looking to do a Special Purpose Rifle (SPR) build for a designated marksman role.
The version I’ll be featuring here today is the 12.5″ model, but Madbull also offers this same rail in 7″ & 9″ lengths as well, as you can see from the label on the box I’ve posted above.
This rail is considered to be “modular” because you can attach the side & bottom picatinny rail plates to multiple locations on the outside the rail, allowing you to customize the look, feel & functionality of the rifle, while minimizing the weight of the rifle’s front end by excluding unnecessary or unused rail space.
One thing that really impressed me with the Madbull PRI GenIII RIS is the lightweight properties of the polymer material they used to make it, and the fact they were able to do so without seemingly lowering the structural integrity. It feels very solid when installed on my rifle.
Above, you can see some licensed trademarks, actually it’s the website for PRI, which appears to be true to the real versions. Installation: Installation was pretty easy. The rail will need to be fully assembled when you get it. The top rail is bolted on to the tube using those longer holes you see on the tube in the image below.
There are flat, rectangular plates which go on the inside of the tube and all you to bolt the picatinny rail plates to the tube, using hex screws. All hardware is, of course, included in the box. You can see in the image below that I’ve taken the liberty of illustrating what could be a moderately confusing situation when you go to install the top rail. The rectangular plates have four different holes in them for attaching via the screws. They are, indeed, directional, meaning it matters how you have them oriented inside the tube. Take a look at the picture. I think it’s pretty self-explanatory what I mean.
This rail is now available for purchase at your favorite Madbull dealer.
If you’re still not sold on this awesome RIS yet,
check out what the MilSim Junkie had to say in his review and
see how he tricked his whole rifle out using this rail.