Patent Pending
The K-SPEC BCG combines multiple key features focused on increasing the reliability of your AR15 style firearm no matter if you are running suppressed or unsuppressed, and regardless of conditions. The K-SPEC is a truly plug and play BCG that will accommodate whatever configuration your mission requires.
Reduced Peak DB Report
When used in conjunction with a silencer, the gas redirect produces a quieter report
See testing results here- Down Vent vs Side Vent DB reduction testing
Downward Gas Vents
In an effort to reduce the amount of debris and gas vented towards the shooters face, the two standard gas relief ports have been relocated from the ejection port side of the K-SPEC carrier and placed underneath, in the magazine feed lip channels. Two additional emergency relief ports have also been added to the bottom of the carrier to mitigate structural damage in the event of a case head separation. Testing has shown that venting the gasses through the magazine well has no negative impact on the feeding or function of the magazine nor ammunition, and any added heat is negligible.
Slotted Angled Carrier Rails
For enhanced functionality in adverse and rugged conditions such as sand, mud, dirt, and grime. These rail cuts are designed for debris disbursement, resulting in ultra-high functionality in the toughest conditions, including suppressor fouling and foreign contaminates. Strategically located angle cuts in the rails result in fouling and debris being moved into noncritical areas that are not in contact with the receiver and do not affect the function of the firearm. aka sandcutter
- Designed to function reliably in the toughest conditions
- Angled Carrier Rail Cuts for flawless function in adverse conditions and prolonged suppressed use
- Full Auto Profile
- Permatex added between Gas Key and Carrier Mating Surface
- Carrier- 8620 steel, outside rails, bolt runs, and gas bores ground to .0002 tolerances, FDE PVD Finish
- Gas key – 4130 steel, heat treated, secured with T25 torx fasteners, torqued to spec, staked with hydraulic staking machine
- 9.5 oz
Machined in house and assembled using only the finest steels and components.
KAK Industry takes pride in producing some of the finest Mil-Spec/ Enhanced AR15 bolt carrier groups available, made 100% in house at our MO facility using Doosan machining centers, Tsugami Swiss turning, and the latest in FANUC robotics combined into an automated cell giving us lights out production capability. In house automated CMM Inspection processes ensure consistent quality.
PVD (Physical Vapor Deposition) coating is a process used to apply thin films or coatings to surfaces, offering a range of benefits depending on the material and application. PVD is widely used in various industries, including aerospace, firearms, and manufacturing, due to its ability to improve surface properties such as hardness, corrosion resistance, and aesthetic appearance.
How PVD Works
- Vaporization: A material (typically a metal or metal compound) is vaporized in a vacuum chamber. This can be done using techniques like sputtering or evaporation.
- Deposition: The vaporized material then condenses onto the substrate (the surface being coated) to form a thin, solid film.
- Bonding: The coating adheres to the substrate surface, forming a durable layer.
Benefits of PVD Coatings
- Durability: PVD coatings are known for their hardness and wear resistance, which makes them ideal for applications where surfaces are subject to friction or abrasion.
- Corrosion Resistance: They provide excellent protection against corrosion, extending the lifespan of the coated materials.
- Finish:
- FDE PVD
- Type:
- K-SPEC ENHANCED
- Hand Preference:
- Right Hand
Reviews
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KAK Downvent Bolt Carrier
Bought a Nitride version of the K-spec bolt carrier shortly after release, a few months and a few thousand rounds later, I've picked up another in the FDE PVD because I always ended up swapping the K-spec around to whichever rifle my suppressor was on. I've been using them with BCM bolts and they make suppressed shooting much more pleasant without sacrificing reliability. Can't really see any significant difference in magazine/fcg pocket fouling compared to a regular side vent bcg. 10/10 and I will probably end up buying more of these carriers in the future.