Home AR-15 Accessories California Compliant AR Mod Kit

California Compliant AR Mod Kit

$69.99
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We are proud to introduce the Hellfighter Mod Kit, the perfect, ultra-fast California Compliant magazine lock solution for your AR-10 or AR-15. This comes after a year of engineering and countless attempts to make the best and simplest solution on the market. With this bolt-on solution (patent pending), you will be able to perform magazine changes faster than you ever thought possible.

One of the features that sets us apart is our modified quick-release takedown pin, which acts as a button to separate the upper from the lower just enough to disengage semi-automatic operation and automatically disable the magazine lock. Once your upper is separated and disengaged from semi-automatic operation, your magazine release is now operable. A simple tap closes the upper and re-engages the spring-loaded takedown pin and will quickly get you back in the fight. The Hellfighter Mod Kit is compatible with any Mil-spec AR-15 or DPMS Platform AR-10. AR-10 Kit will work with either back or bottom-fed detent.

How it works:

By changing out your rear takedown pin and replacing it with our modified takedown pin in combination with a new magazine lock that replaces your factory bolt catch, you will have a completely California Compliant AR. You no longer have to use a Featureless AR solution. Our system will allow you to keep all of your current features, including a pistol grip, a forward grip, and adjustable butt stock. You can even reinstall a mil-spec magazine release. No need for a bullet button. To purchase a standard magazine release button, click here.

  • Ultra-fast magazine changes
  • Easy to install in 30 minutes or less
  • Featureless AR components no longer needed
  • No need to permanently modify your upper or lower
  • No need for bullet button
  • Available for any AR-15 or AR-10
  • 100% made in the U.S.A.
  • Finished in black or stainless steel
  • Patent pending
  • Custom modification required with Aero M5 lower

ORDERS OF 6 KITS OR FEWER WILL BE SHIPPED VIA USPS.

CLICK HERE FOR VIDEO INSTALLATION INSTRUCTIONS

Recent reviews

5 out of 5 stars

Great Price

The price was very reasonable. Easy to install. Would definitely recommend to others.

K.J.

Verified
October 2, 2024

5 out of 5 stars

Easy to install quick to adapt to using it

I like it quality is very good didn’t have any trouble installing it. I have them on my guns Takes a little use getting use to it but can change mags almost as fast as before the bullet button

John R.

Verified
September 25, 2024

5 out of 5 stars

JUGGERNAUT TACTICAL CALIFORNIA COMPLIANT AR MOD KIT

This product is awesome and I can't say enough about the Juggernaut team! This was a fabulous experience from start to finish.

m.d.

Verified
September 10, 2024

4 out of 5 stars

The modified rear takedown pin is a very tight fit.

The modification does function as advertised, but as we all know; the upper and lower isn't meant to be repeatedly separated to change the magazine. The being said, there's a need for some compromise. My situation is that I need to allow my upper and lower to have some wiggle to give enough play to allow the modified rear takedown pin to function. Also, I need to allow even more wiggle to be able to fully pull out the modified takedown pin to separate the upper from the lower. To do this, I need to remove the grip on the lower and backoff the tension screw. It can be that my upper and lower aren't the best fit to begin with, but it does seem like there needs to be some wiggle between the upper and the lower for the modified rear takedown pin to function. If I adjust the tension screw, take all the wiggle out of the connection between the upper and lower; the modified takedown pin doesn't function. The wiggle is not terrible, so I will continue to use the Hellfighter without a tight fit between the upper and lower.

Anonymous

Verified
September 3, 2024

5 out of 5 stars

AR MOD KIT-PERFECT PROD

Ar mod kit is the perfect product.its easy to use and it saves time.esecpecially in California .

P.M.

Verified
August 24, 2024

5 out of 5 stars

Fantastic kit!

Great kit, I just wish it held back the bolt after the last round. But can’t complain, it makes it legal for me to have an AR

Chris M.

Verified
August 24, 2024

5 out of 5 stars

Updated review

Well, I have to eat crow today. I was having problems after installing the Juggernaut CA compliant kit and I assumed it was the magazine lock that was causing the issue. It turns out that it was the buffer and spring that I had installed at the same time. Now that I installed the correct one I’m not having the jamming malfunctions anymore. The Hellfire kit works pretty well compared to the other 3 kits I’ve tried and is my favorite choice. My apologies for the bad review. Original review: This is the third California compliant device that I’ve spent money on and it seemed like everything was working well…until I tried feeding a round in the chamber. It kept jamming and I couldn’t figure out why. I guess the bolt catch now catches on the magazine follower. The manufacturer suggests filing down the follower on the magazine or buy old school metal magazines that don’t have the follower. I’m not a professional gunsmith so this is kind of ridiculous.

Daniel G.

Verified
August 22, 2024

1 out of 5 stars

California Compliant AR Mod Kit

Not compatible with the Diamondback DB15 magazine release

Mac M.

Verified
August 20, 2024

5 out of 5 stars

Keeping it legal

Best system for CA rifles easy to install plenty of information and videos online A+++ company

Jay B.

Verified
August 20, 2024

5 out of 5 stars

California compliance

Seems like one of the best way to keep in California guide lines today .

Christopher G.

Verified
August 19, 2024

5 out of 5 stars

Must have for Cali living

If you live in Cali this is a must have for your AR... Best AR kit out IMO, don't wait, just get it already.

Chris

Verified
August 14, 2024

5 out of 5 stars

Easy install

Good product, first time builder and went in no problem

Zachary B.

Verified
August 13, 2024

5 out of 5 stars

Good mod, but featureless might be better.

Like the title says, it's a handy tool if you wanted to have "features" on your rifle. The trade off is that you modify the rifle in ways that aren't intended and could cause problems. I think in the moments where it matters, I'd prefer to have an unmodified takedown pin and bolt release and such. Still, this is a great option if you're looking into this sort of thing.

Anonymous

Verified
August 8, 2024

5 out of 5 stars

This thing works great

I have a few of these and they work great. Very fast and easy. After doing it a few times it’s almost as fast as a typical reload.

Ted B.

Verified
August 3, 2024

4 out of 5 stars

How to live in CA with an AR

arrived on time all parts in the package. Good instructions, however, it took a little bit of work to get it installed (not an Armorer). it works as advertised and very easy to use and reload. it allows me to retain all the parts of my original AR and still be able to drop the Mag quickly here in the Peoples Republic of CA. One issue, however, which i had to go to a gunsmith for was in taking the gun down for cleaning. he showed me how to do it and not to be afraid i would not get it back together. overall, it was, and is, a great addition. i would buy again .

JLR

Verified
July 30, 2024

5 out of 5 stars

Gold Standard Mod for CA ARs

I've installed this kit on all my ARs. I threw away all of the other clunky "solutions." Once you get it dialed in on your rifle it will become second nature. This is a solid kit made in USA.

T.

Verified
July 30, 2024

5 out of 5 stars

California mod kit

I purchased this years ago when i lived in comifornia and absolutely loved it. It was easy to use and still made shooting fun. If I still lived in California, I would purchase another in a heartbeat.

Jordan S.

Verified
July 9, 2024

5 out of 5 stars

insane place tp live

California Compliant AR Mod Kit works really well for this totally corrupt state

MICHAEL B.

Verified
July 9, 2024

5 out of 5 stars

Works perfect and easy install in my SR25!

A great kit and easy to install. Takes a few trail runs to get use to for reloading your mag but worth it to be “compliant” with Commiefornia laws.

Andre B.

Verified
June 18, 2024

5 out of 5 stars

Hellfighter Mod Kit

This mod kit was simple to install and works great. Since we have to modify our magazine release here in California to be compliant, than this is an excellent option.

William

Verified
June 18, 2024

5 out of 5 stars

Best CA compliant kit in the market!

Super easy to install. Way better than all the other kits in there market. Allows you to change magazines pretty quick.

L L.

Verified
June 9, 2024

5 out of 5 stars

CA Compliant

Sad that we need these at all but with that said I have 2 installed and the work great. Better option than many others in my opinion.

Jason Y.

Verified
June 9, 2024

5 out of 5 stars

Easy Peasy

Simple and it works. Plan on buying another two in the future.

Brent Wilkening

Verified
June 9, 2024

5 out of 5 stars

It works but is a little finicky

It was easy to install and it probably assists in making my AR compliant but I’m pretty sure there are some other issues that have to be addressed on the AR to insure CA compliance because the State is determined to make everything a complete bitch to comply with. I found it to be very finicky and some magazines seem to jam with it. I am goi g to remove it from one of my lowers to check for function with and without it. It’s just another necessary evil imposed on the gun owners of kalifornia!

Jeff J.

Verified
June 8, 2024

5 out of 5 stars

Ar mod

Great product

Ian C.

Verified
June 3, 2024

5 out of 5 stars

Mod Kit

Unfortunately, I live in CA and had to modify my AR to be complaint. The Mod Kit works well and allows me shoot my AR with turning my rifle to look like a boat paddle.

Anonymous

Verified
May 28, 2024

5 out of 5 stars

Easy to install

This kit is easy to install and gives you most of the features while staying ca compliant. Great alternative to featureless

THOMAS G.

Verified
May 23, 2024

5 out of 5 stars

Happy guy

I haven’t installed it yet, but I know I’m gonna love it

Kevin

Verified
May 17, 2024

5 out of 5 stars

Doesn't fit my Springfield Saint Ar-10 Perfectly

I think the Saint is closer to an AR-15 in dimension even though it's AR-10 .308, so the part originally didn't fit but their customer service was top notch in getting it resolved so still 5 stars

Ken

Verified
May 8, 2024

5 out of 5 stars

Feeling good and legal

The juggernaut California compliant buttons are brilliant and I have many. I have to stay compliant until we move. Juggernaut is my go to. Thank you for everything. Tom

Tom D.

Verified
May 5, 2024

5 out of 5 stars

Best Fixed Mag Solution

A little pricey but worth the money IMO

Ben J.

Verified
May 5, 2024

5 out of 5 stars

Half good, half bad

The pin is the only great thing. It could use a bit more cleaning in the cut out as mine still had machine sharp edges. (A little file and oil helps). The other piece (mag locking) removes the bolt lock. Which is not ok if you are going to certain ranges that require to leave the bolt locked open.

Berto B.

Verified
April 30, 2024

5 out of 5 stars

Great

The best I’ve used

Mike D.

Verified
April 26, 2024

5 out of 5 stars

Compliant Kit

No frills. Exactly as advertised

Jow

April 24, 2024

5 out of 5 stars

Easy to install

The mod was easy to install and works great.

tony s.

Verified
April 22, 2024

5 out of 5 stars

Best on the market

Best California compliant system. Easy to install. Fast reload time. Really reliable.

Andrew S.

Verified
April 21, 2024

5 out of 5 stars

Nice Solution!

The Hellfighter kit works as advertised and when used with the AR Maglock makes for an efficient California solution ...

Ray B.

Verified
April 21, 2024

5 out of 5 stars

Easy install and works great.

Although I do not agree with having to use this product I am glad it is available. Installed with ease and nothing had to be custom fit, just drop in.

Brett W.

Verified
April 19, 2024

3 out of 5 stars

Hard to diagnose issues without removing the pin

Hard to diagnose issues without removing the pin. It’s good that a solution was designed but I like the featureless grip option over this honestly

Ron

Verified
April 19, 2024

5 out of 5 stars

Very good alternative to F'd-up CA restrictions

Got my AR Mod kit - great fit and it works just like they said! Easy to install, but it does need some good lubing for the receiver lever to work freely.

Bob H.

Verified
April 1, 2024

5 out of 5 stars

Amazing!!!!!

Works perfectly!!!! Couldn’t be happier with my purchase.

Jack Q.

Verified
March 28, 2024

5 out of 5 stars

Nice quality

Quick shipping, nice quality

Robert S.

Verified
March 26, 2024

5 out of 5 stars

Solid part

Works as discribed.

Mark F.

Verified
March 11, 2024

5 out of 5 stars

Great alternative for a scrappy situation

Thank you guys for creating those solution for those of us living in this awful state when it comes to 2A rights. If you are looking for constructive suggestions on the already great product that you created, please make ambidextrous, and in a perfect world find a way fo the bolt to lock back once we run out on mag. Keep up the great work.

Gabriel

Verified
March 8, 2024

5 out of 5 stars

My CA AR that isn't

My CA compliamt mod kit is great! It was easy to install. It's easy and quick to use. My MSR has all the features allowed in other states but isn't an assault rifle by CA legal standards. Thanks Juggernaut!

Patrick S.

Verified
March 8, 2024

5 out of 5 stars

Love it best way to comply

So far this is my favorite way to comply with ca.

Darrin K.

Verified
March 1, 2024

5 out of 5 stars

CA compliant kit

Other than the fact that it infuriates me to have to make these mods, the Juggernaut kit worked perfectly

Karl B.

Verified
February 28, 2024

5 out of 5 stars

California Compliant AR Mod Kit

Illegal restrictions being set on rights in California.

Paul S.

Verified
February 27, 2024

5 out of 5 stars

Love IT

best tools

DUSK

Verified
February 27, 2024

5 out of 5 stars

CA. Compliant kit

California sucks, but the kit is great.

Martin G.

Verified
February 24, 2024

5 out of 5 stars

Stainless version

The Install was simple and everything works as described. Overall very satisfied.

Mr. F.

Verified
February 23, 2024

5 out of 5 stars

Great Products

I have been very pleased with my purchases. Smooth function and great quality. Easy install.

p.L

Verified
February 22, 2024

5 out of 5 stars

Nice & Reliable

The parts fit & look great. Very simple to install and use.

Michael R.

Verified
February 22, 2024

5 out of 5 stars

CA Approved parts

I installed many of these parts in CA. Easy install & once my customers were trained on their use, they were happy. I closed my shop to get away from the ridiculous rules applied in CA.

Fallon P.

Verified
February 22, 2024

5 out of 5 stars

Best featureless build

Love the mod kit, it's my go to when building featureless rifles. Makes them functional and fast at reloading.

Adam N.

Verified
February 22, 2024

5 out of 5 stars

Great product

California it’s comply Issues are too much. My firearm works perfect with this scenario. Thank you will be purchasing again.

charles d.

Verified
February 14, 2024

4 out of 5 stars

Woks pretty well

It is to bad we need these. They make takedown a PIA.

Bill G.

Verified
February 14, 2024

5 out of 5 stars

Quality Parts

The AR-15 & AR-10 California mod kit made of quality parts, looks great and works great as well. This is the fourth mod kits I’ve installed, they have all been easy to install and worked flawlessly. Thanks again!

James R.

Verified
February 14, 2024

5 out of 5 stars

Easy to use

Easy to install and so well made that it works every time!!

Robert J.

Verified
February 14, 2024

5 out of 5 stars

DIY

This is the greatest California compliant Device that I could imagine! Easy to install! It works excellent! If you need California compliance, this is the way to go!

Shannon J.

Verified
February 14, 2024

5 out of 5 stars

Works but OVER$$$

Works as intended but in my opinion overpriced. It doesn’t run smooth when you’re trying to disengage both take down pins. If instead of a detent, it was a ball bearing of sorts to let the pin run smother, this product would break the internet!… It would be worth the money but for now…I’d say 30-40$ tops is the value of this mod.

Valencia_805

Verified
February 14, 2024

5 out of 5 stars

It certainly works

It does its job. Adds a bit of play between upper and lower receivers but otherwise works. Sucks that such a product even needs to exist but thankful that Juggernaut is doing what it can to help Californians.

Z M.

Verified
February 14, 2024

4 out of 5 stars

Easy to get used to

I have it on 5 or 6 of my rifles. By now it takes me maybe additional 1 second longer to release the mag and close it back up vs standard (normal) AR. Only complain is that I had to always check the knob as it gets lose and actually fell off a couple of times. I purchased some tiny rubber gaskets and it completely solved the problem. It would be a good idea if Juggernaut had a permanent rubber gasket inside to prevent the knob from getting lose. Otherwise a perfect solution to CA’s lame laws.

Jack

Verified
February 14, 2024

5 out of 5 stars

Ca compliant mod kit

Easy to install and works great. Thank you Juggernaut!!

Scott B.

Verified
February 14, 2024

5 out of 5 stars

Great kit

The parts were well made,fit perfectly and the instructional video was top notch.

thomas d.

Verified
February 11, 2024

5 out of 5 stars

Issues with takedown pin design

Functionality, the JT kit works fine. However, 2 issues I've run into: (1) the button trends to loosen and unscrew after a day at the range. It hasn't unscrewed completely and fallen off (yet) but that would be an issue if it did. And (2) when you pull the takedown pin out to separate the upper & lower for cleaning you have to be REALLY careful to not let the detent pin slip off of the takedown pin. Otherwise, you're spending time precariously trying to push the detent pin back into place (while trying not to bend it). If the takedown pin could somehow be re-designed so that it keeps the detent pin pressed while pulling it out that would be awesome!

Dennis P.

Verified
February 11, 2024

5 out of 5 stars

Easy to install

Great product.

Russ M.

Verified
February 10, 2024

5 out of 5 stars

Good stuff!

I have other AR's with the armaglock and they work but they failed me at the same time (the catch loosen up over time no matter how tight or how much loctie you use) so when it came time to fix mag my next ar, i decided to look around and came across the jt tactical kit. Bought it and installed it and love it! I like how descreet the acutal locking portion is, way less intrusive than others out there. love the kingpin design, that offers you the ability to disasemmble the button and pull the pin out. After installing the first one, i ended up buying 3 more +1 for an ar10 and swapped out my other rifles. It still sucks to have fixed mag, but might as well make it a little convient. Will definitely buy another or reccomend this to others!

Tony U.

Verified
February 9, 2024

5 out of 5 stars

Love it

I love the simplicity of it and easy to install as well

Michael B.

Verified
February 9, 2024

3 out of 5 stars

On the front end it was cool.

It was cool for a while but switched to a featuless build. The rear pin got bumped and bent slightly making it almost impossible to remove. Also if the bolt drops while and empty mag is inserted or if there is a malfunction it makes the firearm dangerously difficult to clear or open. And also very fiddly and annoying in general. Cool product lame compliance laws.

David C.

Verified
February 9, 2024

1 out of 5 stars

Not used

Ended up not using it because it was too difficult to use and install.

Eric S.

Verified
February 9, 2024

5 out of 5 stars

Perfect

Works great! Using it on 2 AR platforms and it operates flawlessly. I have a CA compliant modification from another company and it’s junk compared to the Hellfighter mod. I will only be using the Hellfighter mod from now on.

Christopher D.

Verified
February 6, 2024

5 out of 5 stars

Juggernaut hellfighter kit

Works flawlessly, easy installation. Even for someone with no experience taking apart an AR. I’m glad I went with this option! Definitely will buy again if another AR ends up in my gun safe :)

Christopher V.

Verified
February 6, 2024

5 out of 5 stars

Great Product

Product came on time. 👍🏼 Looking forward to order more parts.

Peter B.

Verified
February 5, 2024

5 out of 5 stars

PHENOMENAL

I want to start by saying I was trying to install it upside down for at least 20 minutes. Once I figured out that I was a dolt, it dropped right in. Adjustments were easy, and I will admit, I didn't use any loc-tite as the video recommended, but haven't had any issues with that screw moving. I love having a featured rifle and the jugg kit makes it so terribly easy to just break the action - instead of one button to drop the mag, it's 2. My son is annoyed by it, but I think fully worthwhile.

matt s.

Verified
February 5, 2024