Magpul Wire Control Kit: More Bang for Your Buck

Magpul yet again solves another problem, this time pertaining to lights and lasers. No longer do we have to plan the route of our cables before purchasing wire control pieces nor pay an arm and a leg. Magpul gives us an easy to install wire control kit that comes with 6 pieces for under 20 bucks.

Lights and lasers..they can be a mess on your gun. Whether you are running your AR-15 build for home defense or for a low light competition you are probably going to have a light on that gun, maybe an actuator button for the light, and even a laser as well. All of that leads to a big mess of wires. So what’s the solution? A wire control kit. A simple to install guide on your rail that has wire housings allowing the user to route their wires for organization and to keep them close to the rail. No snagging!

Zip Tie Note: There will probably be people that will scoff at this article due to them using zip ties to control their wires. Users can do what they want, it’s their platform however. While zip ties are cheap and easy to remove and replace if you want adjustment of your wires, they also can slip if not cinched tight enough and if cinched too tight, they can cut into the wire. Yikes.

There are a lot of wire guides on the market for various platforms such as Picatinny or M-LOK. While it’s nice to have options, there are downsides to many of these wire guide options.

without wire guides
This is without any wire routing. Notice that the wire sticks out and can snag on items including your hands as you grip the gun.

The Problem

First, they can be expensive. High quality wire guides are usually going for 18-20 bucks just for a single piece. With multiple accessories users will usually want at least 2-3 per gun depending on the set up. Now add that to the cost of the already pricey lights and lasers set up, it get’s expensive.

Secondly, many of these guides are created for specific directional mounting. Meaning, some guides will created to route your wire 90 degrees on the rail, 45 degrees, some straight through, some even end clips. All of this can get confusing if it’s your first time setting up lights and lasers and it would be a bummer to order something that you’d have to return later just because it didn’t route your wire in the direction you wanted it.

wire route
On the top, a run through route, on the bottom, a 90 degree route. The WCK pieces have openings around the entire piece allowing for any directional routing. This means you don’t have to have your route planned before purchasing the kit. You can make it up as you go and won’t have to return anything. Photo: Magpul

The Fix

Well again, Magpul saw the issues and gave us a product that fixed those issues. For $19.95 you get a pack of 6 guides that allow for any directional routing.

magpul wck
Six pieces for the price of one is something that you cannot beat. They install tight, won’t fall off the rail, and don’t damage the wire.

WCK Wire Control Kit M-LOK

Price: $19.95

Colors: Black, Olive Drab, Flat Dark Earth

  • The WCK ships with six easy-to-install M-LOK-compatible assemblies.
  • Each assembly is a half-slot size to allow for precise positioning and can route cables straight through, at 90 degrees, or at 180 degrees to accommodate different variations.
  • The WCK is compatible with metal M-LOK handguards and may not fit all polymer handguards. The WCK can route standard gauge cables.
  • Made in the USA
  • Weight: 1.75 grams each assembly
  • Dimensions (each): 0.78L x 0.63W x 0.25H in. (over rail surface)

Installing and Removal

The WCK pieces work by using serrated wings that push out onto the M-LOK slot, gripping and locking in once the button is pushed in, pushing the wings out.


To install, simply ensure that the large middle button is out/unlocked. Find your slot position where you want to put the WCK piece. Lock the wire into the piece in the intended direction. Ensure that the wire isn’t pulled too tight away from the light, this can damage the light. After the wire is locked into the piece simply push the piece into the rail and press in on the middle button. You may have to push a big hard dependent on your wires. Do this until you hear a click. It is now locked in.


Removal is a little more tricky, which isn’t a bad thing considering we don’t want the guide to fall out. To remove you will need to unlock that button again to release the wings from the slot. The easiest way I found to do this was by using a thick L shaped allen wrench. You will need to push the allen wrench through a rail slot next to the WCK piece. Then angle the allen wrench until you can press onto a small square on the backside of the piece that will unlock the entire piece. Practice unlocking the piece before it’s actually on the rail so that you understand what you will need to press.

removal of wck with allen wrench
After the piece is fully installed the middle square button will be locked into the rail. To remove, use a thicker L shaped allen and stick it into the rail and try to fish for the backside of the piece. There will be a small square that is in the middle of the piece. Press on that and the entire piece will unlock for removal. Takes a technique, but I’d rather have it be hard to remove than it fall off during my shoot.
Anna Martinez
Anna is a Federal Weapons Gunsmith with 8 years of previous experience within the US Army Ordnance Corps (91F). She has taken multiple armorer and weapons proficiency classes to include FN, Knights Armament, and Small Arms Weapons Expert course. She also writes for American Gunsmith, AR Build Junkie, and is active in Precision Rifle sports around the nation.