Cobalt Kinetics’ 50 State Solution for the AR-15 Platform

Read AmmoLand News’ related article on What Makes a Good AR 15 Stock for an SBR?

Cobalt Kinetics’ 50 State Solution for the AR-15 Platform
Cobalt Kinetics’ 50 State Solution for the AR-15 Platform

U.S.A.-( In March 2018 Cobalt debuted the model 27 rifle. This offering departed from the company’s long-established BAMF platform in that the lower half was designed to have the feel of a more traditional rifle, and ended up being “compliant” (aka featureless) in restrictive markets like California.

The lower receiver of the 27 does indeed mate up with Cobalt’s own AR-15 patterned upper but its cross-platform universality ended there. The grip and stock interface and even the trigger shelf were altered to meet regulations that define and subsequently prohibit a gun based on the geometry of the grip and stock. The receiver extension bears the cheek rest while the aggressively swept grip organically morphs into a stock. It’s made entirely of machined aluminum. It’s a beautiful thing- evidence of the skill and nuance appreciated by the talented artists, engineers and machinists at Cobalt Kinetics.

SENTRY Model 27 - Not your granddaddy's semi-automatic rifle
SENTRY Model 27 – Not your granddaddy’s semi-automatic rifle

Now, as far as they dared depart from the norm with the release of the 27, this most recent rumbling from Cobalt would seem to deviate even further from their established traditions- the handcrafted individually fit rifles for which the company is known. This strategic pivot in product offering manages to connect the universal legality and utility of the 27 to the masses of AR-15 owners living under the shadow of anti-gun legislation. It’s called the Forged Upper Conversion Kit, and it presents as an empty lower half- complete with grip and stock and receiver extension and cheek rest- that has been redesigned (from Cobalt’s own signature aesthetic) to mate seamlessly with most all off-the-shelf AR patterned upper receivers. Like all of Cobalt’s wares, the Forged Upper Conversion Kit is still hewn from a solid block of 7075 T651 certified aluminum alloy, but machined to a contour that will indeed mate and function with nearly every AR-15 upper out there.

The Forged Upper Conversion Kit hits the market as a stripped lower- includes only the assembly hardware for the 13 stock components, buffer retainer, bolt catch screw, trigger guard and a couple of non-typical springs (selector and takedown detent). The rest is up to the builder. Cobalt Kinetics assures a 99% cross-brand compatibility as it applies to uppers, triggers, magazine catches and takedown hardware.

Skylar Stewart, Vice President of Cobalt Kinetics added:

“We have always heard the needs of our dealers and clients…More restrictive states (especially California) have been looking for a legal solution to a complicated and ever-changing legislative environment. We are proud of the Forged Upper Conversion Kit and we believe it’s the best way to maintain as much functionality as possible with the AR platform. It can be configured to be legal in all 50 states. The only non-standard parts this platform uses are included in the kit. California is a large and rich gun market that just suffered the enactment of the most sweeping anti-gun legislation since their 1999 assault weapon ban. If you look at the Forged Upper Conversion Kit, it’s apparent that it’s very labor intensive. It’s not an easy thing to produce at Cobalt’s level of quality. This kit is not about supporting our financial bottom line. We want to make this kit accessible to as many people as possible to make a real difference. It’s ridiculous for responsible gun owners to be turned into criminals overnight by misguided laws. At this moment we’re hoping to help support and maintain the shooting culture in our country.”

The Forged Upper Conversion Kit is being released in the “stripped” state at an Introductory MSRP of $699. It’s promised to be available for looks, feels, and buys at Cobalt’s dealers by mid-July. Standard catalog colors are Black, Stainless, Cobalt Kinetics Green, FDE, Gray and Cobalt (gunmetal gray). Contact Cobalt Kinetics for details, restrictions, and special order options.

About Cobalt KineticsCobalt Kinetics

Cobalt Kinetics designs and builds firearms with bold aesthetics, cutting-edge technical innovation, state-of-the-art engineering and meticulous precision.

Cobalt Kinetics was founded out of dissatisfaction with the unending rows of the same black rifle on every gun shop wall across the country. The real issue with the “black rifle” is that there is little differentiation in the market and very little true innovation. Cobalt Kinetics broke from tradition and re-imagined firearm design and intent. Form and function could be enhanced by applying a careful balance of science, engineering, and art to the gun. Functions unique to Cobalt’s rifles such as the Dual Drop and Cobalt Advantage Reloading System demonstrate this unique new approach. At Cobalt Kinetics, flaws in the original AR-15 design have been corrected and advancements have been implemented while maintaining ultimate precision, absolute durability and bold aesthetics. Cobalt is driven to create firearms that are more effective, more reliable and more rewarding to the owner.

For more information, visit their website.

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Gregory Romeu

Seems to me that many in this country are quick to bow down and scurry for faux, “solutions” rather than stand up and remove from office those that took an oath,to defend the very Constitutional RIGHTS that they are abridging?

I guess in California they truly will discover how to return to slavery in the new age?


What happens if the stock/grip is damaged? is it easily replaceable (as well as cost effective)?


The stock looks useful and interesting, until you get to the seven hundred bucks price tag.
C’mon guys, that is twice what any sane person should have to pay.
Why kick us subjects of the blue states while we’re down?


As others have said, this is the first good looking California compliant stock I have seen.
It has a very sci fi space blaster look to it.
They need to make one in white to look like Imperial Clone trooper from Star Wars!


Looks nice! do you have any affordable blems!


Nice looking lower, may consider adding one – no good reason – just “because why not”
1. will it hold standard capacity AR mags?
2. if so which brands?
3. What calibers will the lower accept, other than 5.56/.223?
4. What is the weight of the lower?
5. Maybe didn’t read it right is the lower compatible with other manufacturers uppers?


1: It will take any standard AR-15 magazine including D60’s 2: All of them 3: All your standard calibers that fit AR-15 pattern uppers like 6.8 SPC, .224 valkyrie, 6.5 Grendel, .458 Socom, .50 Beowulf, 300 Blackout, .22 Nosler, etc. 4: The kit in it’s entirety is 2.8lbs 5:The CNC lower is shaped and profiled to functionally and aesthetically fit with a forged or similar shaped (i.e. CNC’d upper that closer matches a forged upper.) Traditionally our lowers and uppers are by design made together. You can fit a forged or other upper on a Cobalt lower, but it just… Read more »

Sam W

Wil it take 450 Bushmaster?


A standard AR-15 upper modified for 450 Bushmaster or a dedicated upper will fit just fine.


Cute comments saying “eff the law”, but I suppose everyone is familiar with the term “felony” and what that entails if you’re ever charged and convicted of one. Most gun owners have jobs and families to worry about before constitutional crusades. It’s pretty easy to be billy badass on the internet.

Lots of people live in ban states and they will be the model for current free states if and when they get to that point. To assume it won’t happen in “your” state is naive at best.


It might be of interest to you that compliance with New York’s SAFE Act is, approximately, 7%. The civil Disobedience was so widespread that somewhere along the line of 15 Sheriffs refused to enforce it.


About time the upstate people took a stand against Andrew huomo and the nyc cronies the need to be tried and shot for being traitors

John Dunlap

Agreed. If we are to restore a just and moral country, then passive resistance is the only option. We are only justified in using lethal force if and when jackboots start going door to door and people start vanishing in the night. Some of that is being done in stealth, but for the moment the legal means of redress are still mostly functioning, the swamp is being drained, and the right people are beginning to worry about jail time. Things like this lower are a form of passive resistance, like ghost guns. We just need to keep doing what we’re… Read more »

Gregory Romeu

@Adam, this country wasn’t foundex and maintained by a bunch of pussies! it is each Citizen’s Duty to maintain the governments of our constitution and the rule of law irregardless of what job you have or how many kids you raised or it’s going to interrupt with your poker game. THIS Marine “pussie” took out 5 cops to County jailers and a manager at a motel walk away with 45,000. Later on I went up against the assistant director of NICS background check system, Jeremy Wilks and took his ass out on a bogus NICS hold on a firearm transfer.… Read more »


In theory, this is how the constitution is supposed to be upheld, but how many unconstitutional Presidential edicts (Executive Orders) did Obummer issue that were struck down by the federal courts versus the ones on which they never ruled?

DACA comes to mind first. The Iran Deal a close second. Several connected with ObamaCare IIRC.

Anyway, here’s a list of them:

Gregory Romeu

An EO is not, “law”. Only Congress can make laws.

All that jackass did was waste away trillions of American taxpayer dollars while nobody bothered tossing him out of office because he is black and fearing they would create a black uprising if they tried.

Obama’s reign of terror over the U.S. showed us many things, one most importantly, how patient the Patriots of this country are, how fast people can gather arms and prepare and how many people were so willing to, “give up a little bit of liberty for a little bit of safety.”

Jacky Boy

So how do I get the bullshit no open carry law in california thrown out?

Gregory Romeu

Try joining

But don’t bother joining if you are going to do nothing but claim to be a member.

Wild Bill

@Jacky Boy, In theory, you need a case in controversy, that is ripe, and not moot that goes up the court system. First through the Ca courts, and then, again hypothetically, to the U.S. S. Ct. Expensive though. Or become politically active and get the Ca legislature or future Ca legislature to repeal the law. Perhaps a case from a different state, received by the US S. Ct will declare that the founding fathers intended to fill the legal field regarding arms by preempting all future Congresses, presidents, judges, states, cities, counties, and bureaucrats from making any statute, rule, regulation,… Read more »

Wild Bill

@Adam, The prosecutor must prove each and every element of each and every charge brought. That is a tall order. If one keeps their mouth closed, and I mean closed, and does not cooperate, then it is near impossible to be convicted. I suppose that you are familiar with the phrase, “We only convict the stupid ones.”

Chris Harper

Not sure what the problem with pistol grips is. Its still able to be fired with one hand and streamlined even more so concealment shouldn’t be a problem. No mag or grip to hang up on clothing, so do the lib-so-lefts think it just looks so mean,that it could more than likely start firing itself? Firearms seem to be smarter than those who despise them but can’t truthfully say why.


I don’t feel.the need to bow down to any winey ass anti-gun or anti AR wussies !!!! Why compromise ??? It’s just another step closer to getting what they want !! Gun ownership is a RIGHT …. Not a privilege !!!! I encourage ALL Americans to exercise your rights bc I can tell ya one thing …..the criminals will be criminals regardless of the law !!!! Protect yourself first !!!! Then call the authorities ! Dispite what they might claim ….they can NOT protect you from crime !! They can ONLY respond to it once it happens !!! PEOPLE wake… Read more »

Gregory Romeu

Perhaps rather than waste the tons of time and money producing yet MORE added stupidity to the gun market, try standing in front of your mirror and say BAAAAAAA…. BAAA BAAAAAAAAA! It might help if you place a waterproof sticker on your mirror that says, “”SHALL NOT BE INFRINGED… DUMBASS!!”

Jesus H. Christ… Our sheep herding forefathers wouldn’t let you ANYWHERE near their flocks!

Paul Markel

You could try not being slaves, maybe?


The “solution” is to have every manufacturer that sells a product, that is California civilian restricted, whether it be firearms or accessories, also refuse to sell or service it to law enforcement in that State. That is the only way this will ever stop. Ronnie Barrett had the right idea. As gun owners we control the market on virtually every product made. 85% of sales are to the civilian market. If we tell manufacturers STOP selling to these States or we’ll boycott you (and we do), they’ll get the message. If we weren’t so selfish we could change things in… Read more »

Todd Carstens

I completely agree! Hornady took a stand against NY when coumo told banks to attack gun manufacturers. If all firearm and ammunition manufacturers did this to government and police agencies we could unravel all 2A restrictions!

Glenn H

The “real” solution is to have the President Order his DOJ to start suing these anti-American States and municipalities and start sending them to jail if they do not comply. What does “Shall not be infringed” mean to you?

Gregory Romeu

You obviously,have no understanding how the civil court arena works.

2A Craig

The “Solution” is to take back our country


By the authority vested in me by the Founding Fathers, I hereby nullify all unconstitutional laws. You’re welcome.

Wild Bill

@dwest, Roger that. It occurs to me that the Second Amendment clearly expresses the founding fathers’ intent to fill the legal field pertaining to any firearm law, and pre-empts all federal, state, county, city, and bureaucratic attempts to regulate any aspect of keeping or bearing arms. The Constitution is the ultimate expression of pre-emption. Why is this pre-emption not acknowledged?

Gregory Romeu

It appears to me more and more each day that CITIZENS need to reach down into their crotches, grab WHATEVER is their, holster your sidearm and ENTER INTO THE PUBLIC DOMAIN EN MASS! NOT in any, dumb-assed, un-organized, or attempted to be organized and registered, “protest”, but just send out an ACTIVATION DATE, say…. “INDEPENDENCE DAY!” Then STRAP UP AND DO IT! Let the ratio of 10 officers to every 1,000 citizens deal with THAT! Then, go home, look in your mirrors and LOOK AT A TRUE UNITED STATES CITIZEN WITH BALLS… OR TAMPONS or whatever you women folk choose… Read more »

James Brigham (Bigg) Bunyon

Looks like skeletonized versions of all the rest with a hint of tacticool thrown in for good measure..


Appears to be a solution to a non-problem in most states. However, catering to the control monger political machine holding power in the affected states, let’s undercut their power. It’s not home if you’re not wanted. Start leaving those states in droves, and move to states that place more value on the rights that you hold dear. This cuts the offenders power by greatly reducing their tax base AND their pull at the federal level based on population. It will also give the states that do uphold your rights more power at the federal level.

Gregory Romeu

Isn’t that exactly what the tens of millions of illegal immigrants have been doing to our country over the past five decades?

Andy Simondet

We are defending our infringed rights in our country. This isnt their country. They dont have that right or obligation. That’s why democrats try to make their masses the new voters. They can’t get common sence folks to agree with their ridiculous ideology, so they exploit those desperate for work.


Love the aesthetics of this thing and the fact that it allows for people in non-free states to enjoy the AR platform…..BUT, don’t think you can escape the fact that this is called the Forged Upper Conversion Kit or (F. U. C. K.) … yeah, like that wasn’t done on purpose, lol.

John Dunlap

Yep, that’s the general idea. 🙂


It looks better that the new york style compliant ar

John Dunlap

Weird looking, but practical. It has an odd Bladerunner-ish appeal. I’ll have to find out if this will work with Stag Arms’ left handed uppers. I expect to see these in a few sci fi movies next year.

John Dunlap

From Cobalt Kinetics:
Yes, the Stag Left handed upper will fit our Forged Upper Conversion Kit.

Cobalt Kinetics


204 Playa Della Rosita #6,
Washington, UT 84780


I live in a free state so I have no need for one of these. Still, I find the aesthetics oddly appealing.