KAK Industry K-SPEC Downward Venting 5.56 BCG with Dual Ejector Bolt

Name: KAK Industry K-SPEC Downward Venting 5.56 BCG with Dual Ejector Bolt
SKU: MO-425-3312-001
Availability: InStock
Rating: 4.7 (9 reviews)

Based on 9 reviews

SKU: MO-425-3312-001 | UPC: 811163035637

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KAK Industry K-SPEC Downward Venting 5.56 BCG with Dual Ejector C158 Bolt

The K-SPEC Enhanced AR15 BCG is a high-quality bolt carrier group designed for use with both 5.56 and 300 Blackout rifles. It features dual ejectors for reliable ejection of spent casings and a downward vent design to reduce gas blowback. The slotted carrier rails provide smooth and consistent operation. This BCG is built to withstand the rigors of extended use and deliver consistent performance.

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 sand cutter

Downward Gas Vents

In an effort to reduce the amount of debris and gas vented toward the shooter’s 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 or ammunition, and any added heat is negligible.

Dual ejectors

The K-SPEC dual ejector system uses mil-spec ejectors and springs that require no proprietary parts. Ejector holes are centered on the lugs to avoid any reduction in strength of the bolt. The dual ejector system increases the ejection reliability and adds consistency to the ejection pattern. KAK Industry has been manufacturing dual ejector bolts for the AR10/LR308 platform for over a decade and has used that experience to create a durable and reliable dual ejector system for the AR15 platform.

KAK Industry takes pride in producing some of the finest Mil-Spec/ Enhanced AR15 bolt carrier groups available, made 100% in house at their 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.

Features

Designed to function reliably in the toughest conditions
Optimized for both Suppressed and Un-suppressed use, All uses – All Conditions
Dual Ejectors for enhanced reliability
Angled Carrier Rail Cuts for flawless function in adverse conditions and prolonged suppressed use
Downward Gas Ports to reduce gas blowback to shooter
Full Auto Profile
Magnetic Particle Inspected
High Pressure Tested
Permatex added between Gas Key and Carrier Mating Surface
Carrier- 8620 steel, outside rails, bolt runs, and gas bores ground to .0002 tolerances, phosphate chrome lined finish
Bolt- Carpenter 158 Bolt, outside diameters ground to .0002 tolerances, MPI test, phosphate finish
Firing Pin- 8740 steel, Swiss turned, heat treated, precision ground, chrome plated
Cam Pin – 4140 steel, Swiss turned, heat treated, phosphate finish
Extractor- 4140 steel, fully machined, Phosphate coated
Extractor pin- S7 tool steel, ground, heat treated
Ejector- S7 tool steel, ground, heat treated
Gas key – 4130 steel, heat treated, secured with T25 torx fasteners, torqued to spec, staked with hydraulic staking machine
11.5 oz

Specifications

Brand: KAK Industry
Model: K-SPEC Downward Venting 5.56 BCG with Dual Ejector C158 Bolt
MPN: MO-425-0503-045
Material: Steel
Finish: Phosphate, chrome lined
Color: Black
Weight: 11.5 oz
Caliber: 5.56/.300BLK
Fit: AR-15

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

KAK Industry Warranty Information

Our #1 priority is your 100% satisfaction. If any product you purchase from us ever fails to 100% meet or exceed your expectation, please contact us via telephone or EMAIL and we will attempt to resolve the situation to your satisfaction. If you need to return an item, returns are accepted subject to the following guidelines:

No Returns or Refunds are allowed after 30 days from Invoice Date.

Shipping costs both ways are non-refundable. Orders that were shipped to you at no charge with a “Free Shipping” offer will have the cost of the original shipping deducted from the refund amount.
New items that have been used may not be returned unless defective.
Returns must include all accessories as shipped. Refunds will be adjusted for returns missing accessories, factory boxes, etc. or may be returned to the customer at the customer’s expense, at our option. If you are keeping or have lost some of the pieces, please don’t return the item.
Items marked Closeout or Blem, as well as Special Orders may not be returned and their sale is final.
Items that are Custom contract manufactured may not be returned and their sale is final unless defective
Returned items may be subject to a restocking fee.
Any damaged shipments must be reported to the carrier immediately for proper claim handling.
All returns must be prepaid. Insurance on returns is at your option and at your expense and risk. COD returns will NOT be accepted and the package will be returned to you.