- Ergonomic pistol grip with internal storage for improved weapon handling.
- Made In USA Patented Milspec COBRA collapsible buttstock with adjustable aluminum buffer tube for use with any shooter.
- Pistol grip and stock constructed of durable injection molded polymer.
- Ambidextrous sling loop built in to grip.
- Installs in just minutes with no gunsmithing required.
- Fits most Mossberg 500/535/590 series shotguns.
- Length of Pull: 10.5-14.5".
- Weight: 1lb. 2 oz.
About the Cobra Stock
The Cobra Stock MK2 features our own Patented locking system, battery storage compartments and an oversized cheek rest. The Cobra MK2 is easy to install and remove on the any Mil-Spec buffer tube. The butt-pad profile is angled to accommodate plate carriers and the aggressive texturing will ensure minimal movement when manipulating the rifle under stress. Multiple sling points and lightweight snag-free construction the Cobra fits into most builds with ease. For your safety, We recommends this part be installed by a competent, qualified gunsmith/installer with an understanding of the weapon platform that the part is being installed on. Always make sure the firearm is unloaded and pointed in a safe direction when working.
- Made in the USA
- Patent pending locking system
- QD sockets / 1.5″ Sling loops
- Snag-free design to prevent any tangles with gear
- Two different types of ambidextrous sling mounting options, including QD swivel sockets
- Rubber textured butt-pad
- Lifetime warranty
Product Specifications:
- Length (in): 7.5
- Height (in): 5
- Width (in): 3
- Weight (oz): 12.8
- Material: High-Density Polymer/Rubber
- Color: Black
- Length of Pull Range (in): 3.25
- Length of Pull Collapsed (in): 11
- Length of Pull Extended (in): 14.5
15 Reviews Hide Reviews Show Reviews
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No Problems at All
Everything about this part worked as expected. Installation was easy, the fit was correct, and it hasn’t loosened over time. Sometimes the best products are the ones you don’t have to think about after installing, and this is one of them.
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Reliable and Straightforward
There’s nothing complicated about this part, and that’s a good thing. It fits correctly, tightens securely, and stays in place. It’s exactly what you want from a component like this.
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Good Value for a Quality Part
I’ve seen similar parts priced higher, but this one delivers solid performance at a reasonable cost. It feels durable, installs easily, and works reliably. Definitely a good value.
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Keeps Everything Secure
The main job of a castle nut is to keep everything locked in place, and this one does exactly that. Once tightened, there’s no movement at all. It’s simple, but it does its job very well.
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Quick Install, No Issues
This was one of the easiest installs I’ve done. Threaded it on, tightened it down, and that was it. Took just a few minutes, and everything fit perfectly. It’s nice when a part doesn’t require any extra work.
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Clean Machining and Good Quality
You can tell right away that this is a well-made part. The machining is clean, and the threads are precise. It doesn’t feel cheap at all. Once installed, it gives you confidence that it will hold up long term.
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Perfect Replacement for Worn Part
My original castle nut had seen better days, and I wanted something that would restore the proper fit. This did exactly that. Once installed, everything felt like new again. It’s a straightforward replacement that works as intended.
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Holds Tight Over Time
I’ve been using this for a while now and have checked it periodically to make sure it hasn’t loosened. So far, it’s stayed exactly where I set it. That reliability is really what you want from a part like this.
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Solid Fit Right Out of the Box
I installed this on my Mossberg setup and it fit exactly as expected. No need for adjustments or forcing anything into place. It threaded on cleanly and tightened down securely. That kind of precision makes a big difference.
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Small Part That Makes a Big Difference
This is one of those components you don’t think much about until it causes an issue. After upgrading to this castle nut, everything feels tighter and more secure. It’s a simple part, but it really does improve the overall setup.
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Smooth Threads Made Installation Easy
One thing I always look for with parts like this is how well the threads are cut. This one went on smoothly with no resistance or cross-threading issues. That made installation quick and stress-free. Once tightened, it seated perfectly and hasn’t moved since.
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Fixed a Problem I Didn’t Expect
I had a slight looseness in my setup that I couldn’t quite figure out at first. After checking everything, I realized the original castle nut wasn’t holding as tight as it should. I replaced it with this one, and the difference was immediate. Everything locked down properly, and the whole setup feels much more solid now.
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Small Part, Big Difference
I didn’t expect much from a castle nut, but after installing this one, I noticed how much more stable everything felt. There’s no looseness, and it holds everything firmly in place. It’s a simple upgrade, but definitely worth it.
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Solid Fit and Easy Installation
Installation was straightforward and didn’t require anything complicated. Once I threaded it on and tightened it properly, it locked everything down securely. The machining looks clean, and it fits exactly how it should without any play.
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Exactly What I Needed for My Build
I was putting together a new setup and realized the original castle nut wasn’t giving me the secure fit I wanted. After switching to this one, everything tightened down properly and stayed in place. It’s one of those small parts that doesn’t get much attention, but it makes a big difference once installed.
