Description
If you have run the One Hundred Concepts LightCap or ScopeCap setup, you already know the shock cord retention game can get fiddly. Ranger bands slip, loops bind up, and pulling a light head for a battery change turns into a wrestling match. The ShockCollar fixes all of that with a simple locking ring that mounts right to your light head and gives the shock cord a dedicated set of eyelets to anchor to. No more looping cord around the body of the light or optic, and no more ranger bands rolling out of place.
What the ShockCollar Large Actually Does
This is the Large version, sized to match large LightCaps and ScopeCaps. That makes it the right pick for lights like the Cloud Defensive REIN 1.0, REIN 3.0, and OWL, the SureFire Turbo series (M340DFT and M640DFT), the Streamlight ProTac 2.0 Rail Mount, and SureFire 660 and KM3 models. The simplest way to size it is to match the collar to the cap you already have. Running a Large LightCap? Grab the Large ShockCollar and you are set.
Why Shooters Switch to the ShockCollar
Because the cord locks to the light head itself, you get a full range of motion without the cord binding or unlooping. That means quick battery changes, easy articulation of rotating heads like the SureFire Vampire Scout, and smooth operation of magnification throws on LPVOs where the rear of the optic does a lot of the work. It is also a solid upgrade for scopes with rotating oculars, including the EOTECH Vudu and Nightforce ATACR, where cord binding used to be a constant annoyance.
Setting Up Your ShockCollar
Installation is straightforward and the collar ships ready to go. Each one comes with two different length screws so you can dial it in to different light head diameters, plus a pair of nuts so you are covered if one goes missing. Keep in mind the ShockCollar is not required to run a LightCap or ScopeCap, it just makes the whole system cleaner, quieter, and far easier to live with day to day.
Key Specifications
- Manufacturer: One Hundred Concepts
- Model: ShockCollar
- Size: Large (35.56mm / 1.4")
- Color: Black
- Finish: Matte
- Fit: Large LightCap / ScopeCap
- Product Type: Accessory
- Manufacturer Part Number: OHC-CLR-LG
- UPC: 3511144142190
What’s Included
- One ShockCollar locking ring (Large)
- Two screws of different lengths
- Two nuts
Frequently Asked Questions
What size light does the ShockCollar Large fit?
The Large ShockCollar is sized to match large LightCaps and ScopeCaps. That covers lights like the Cloud Defensive REIN 1.0, REIN 3.0, and OWL, the SureFire Turbo series (M340DFT and M640DFT), the Streamlight ProTac 2.0 Rail Mount, and SureFire 660 and KM3 models. The easiest rule of thumb is to match the collar size to the cap you are already running.
Do I need the ShockCollar to use a LightCap or ScopeCap?
No, it is not required. The LightCap and ScopeCap ship with a ranger band and shock cord that work fine on their own. The ShockCollar is an upgrade that replaces the ranger band and gives the cord dedicated eyelets to lock onto, which makes installation cleaner and battery changes much easier.
How does the ShockCollar help with rotating optics and light heads?
Because the shock cord anchors to the light head itself instead of looping around the body, nothing binds up when you rotate or articulate. That is a big help on rotating light heads like the SureFire Vampire Scout, LPVO magnification throws, and scopes with rotating oculars such as the EOTECH Vudu and Nightforce ATACR.
What comes with the ShockCollar for installation?
Each ShockCollar includes two screws of different lengths so you can fit it to different light head diameters, along with two nuts. Installation is simple and the hardware gives you flexibility to dial in the fit on your specific setup.





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