Cobalt Kinetics

Cobalt Kinetics Pro Buffer System – Carbine


Compatibility: AR-15 Patterned Carbine

Material: Low-friction Polymer, Tungsten, Steel, Flouroelastomer

Model:A003 (milspec) A004 (commercial)

  • Minimize Recoil
  • Improve Handling
  • Speed Shot Recovery
  • Competition or Multi-gun Compliant

Product Description

Cobalt Kinetics Pro Buffer System – Carbine Details

Cobalt’s patent pending Pro Buffer System is among the most effective performance upgrades available for the AR-15 today. The user can balance the rifle’s operating system to enhance performance and reduce recoil. With the 4 weights provided, one can create a 2.6, 3.6, or 4.6 ounce buffer. Four different springs are available. This comprehensive selection of weights and springs allows for twelve possible configurations. This gives the user the options and capability to tune and optimize any rifle configuration. All calibers, barrel lengths, gas system types, and even an individual shooter’s styles can be improved by our buffer.

The ability to alter the recoiling mass, and independently control the rate of deceleration of the recoiling mass allows complete operator control over the timing and energies generated by your rifle. These options make it possible to get your rifle’s operating system in balance. Your rifle will run smoother, flatter, and cleaner.

Superior Engineering

We use low-friction, energy-absorbing polymers to make the buffer components- even the receiver extension is lined with a hard polymer film. In order to provide smooth, quiet operation, we tightly control the tolerances of the buffer, receiver extension, and recoil springs. The damper element in our buffer is made of a flouroelastomer that effectively kills kinetic forces before they translate into recoil. The simple design of the buffer allows you to change weights without tools.

Competitive Advantage

The Cobalt Kinetics Shooting Team (Keith Garcia, Kalani Laker and Rick Birdsall) used the Pro Buffer to win numerous competitions. According to the team, the Pro Buffer’s outstanding performance was a contributing factor to their success and numerous wins from 2015-2017. The Pro Buffer is among the most effective methods of enhancing handling characteristics and overall performance of your AR-15.

This Buffer System is standard kit on all Cobalt Kinetics Team rifle models.


The receiver extension supplied with the Pro Buffer must be used with the kit. Don’t heat the receiver extension in an oven. Don’t use this buffer kit with pistol-length gas systems. This buffer is suitable for use with bolt carrier groups weighing from 6 to 12 ounces. The kit will fit any AR-15 patterned lower receiver. This kit is supplied in two patterns; to upgrade an existing Cobalt Kinetics rifle or as a universal fit to upgrade any other AR-15- please specify in options when ordering.

Join and Discover

The Cobalt Difference

Cutting Edge


Cobalt will never be satisfied with the status quo. We are always asking – Why? With our imagination, incredible engineers, and a desire to improve; we are constantly innovating an already amazing platform. We continue to explore how our innovative improvements can make you a faster and more accurate shooter. Innovation is at the core of who we are.

Military Grade


We torture test our rifles and pistols in the most extreme conditions, from the snow to the desert heat, they will function in any environment. The tight tolerances of the firearms protect the internal components from external elements. We Cerakote all our firearms to add to the durability. Multiple sources have reported that they have run our firearms in excess of the 50,000 rounds mark.

Match Grade


Our components are precisely engineered to the tightest tolerances. Our standards far exceed that of other manufacturers. We included match grade barrels and premium triggers in every firearm to enhance accuracy. Our Pro Buffer comes standard to reduce recoil allowing faster follow up shots. From the aggressive look and design to the quality of the components within, we are committed to assembling the finest firearms in the industry.



Every angle we cut, and every component we use, serves a function in our overall design that must be shot to be fully appreciated. At Cobalt Kinetics we source premium parts to compliment our high tolerances and precision engineering. Each component undergoes a strict quality control check before being installed into our firearms.

From the Experienced

The Cobalt Truth

I handled one of these at Firearms Unlimited in Exeter, RI. I have handled and fired a lot of AR’s in my lifetime but the fit and finish on this one is I have to say is the absolute best. I dare you guys or anyone to make a better one.

Thomas Neves
Picked up my first cobalt AR this week. As far as an AR rifle, this I will say is the best elaborate weapons system I have run across as of today…the machine work and design with dual operation components are outstanding. The only thing that would make my rifle any better would be if it was in Tennessee orange and white lol.

Danny Hall
No other AR comes this close to perfection on the market today. Fit, finish, function far surpass anything else, and dual drop means always having the drop in any tactical situation.

Brok Lee