Posted on September 11th, 2013 by ar15news
Strike Industries recently released their new Mega Fins KeyMod rail. Being that this is their first attempt at an AR15 rail I didn’t really know what to expect but I’ve been running one on one of my carbines for about a month now and have been pleasantly surprised. The price point is really awesome too. Most of the pics below are ones I took for this quick initial review.
The Mega Fins get their name due to the heatsink fins on the inside of the rail to help dissipate barrel heat evenly. It also appears to have helped make for a very rigid structure because for as lightweight and compact as the Mega Fins are, they are very sturdy too. The set they sent me was a 7″ version so I installed them on a pretty cool upper using a well loved prototype Colt SOCOM barrel (not rusted, its paint), a Standard FSB and the Strike Industries J-COMP.
Once installed I decided to install one of the accessory rails that Strike Industries makes for their Mega Fins KeyMod rail. There are seven KeyMod sides so I had plenty to choose from. They make Polymer and Aluminum sections as well as a 45 degree offset rail section. The first I installed was a small polymer rail section for my Vertcal Grip. After that I initially installed the 45 degree section but the light I wanted to use had too large of a mount so I installed an Impact Weapons Components Offset KeyMod Mount because it brings the rail section a bit further away from the handguard. The great thing about KeyMod is that its open source tech so all manufacturers have the same specs and the different KeyMod accessories will work on different manufacturers rails, etc. All of the rail sections and accessories I installed on the Mega Fins KeyMod rail fit perfectly and mounted tight.
From this point on I just had fun with it. Its made a couple different trips to the range with it and the rail gave me zero issues. The J-COMP was great as well. It was loud but makes for a great little comp. The finish on mine is the Matte Black. They also come in FDE and Urban Grey and range from 7″ all the way out to 15″. Click on the images below for a larger version.
As I said before, I was pleasantly surprised with the Mega Fins and really like the look of them on this gun. The initial install was pretty straight forward with one exception. Basically the instructions call for you to install the supplied barrel nut, torque it down and then install the rail to see if the screw holes line up. This makes sense but if they aren’t lined up then you have to remove the barrel nut and add one of the multiple different size shims. Unfortunately it is trial and error as there is no way to know which shim to use. A simple index point on the barrel nut and a reference sheet could make this much easier. This is an observation not a complaint. After a few attempts I had the right combination and it lined up perfectly.
With Mega Fins prices starting at just $99 they are extremely affordable too. Right now, if you buy any Mega Fins Handguard, use the code S123231 at checkout to get a free t-shirt. Purchase the Strike Industries Mega Fins KeyMod rail at StrikeIndustries.com.
ADDITIONAL INFO: The Offset KeyMod mount used in the photos above can be purchased from ImpactWeaponsComponents.com. Use the code “ar15news” at checkout to save 5%.