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Questions & Answers
Would this BCG still prove superior function or additional benefit in a .300BLK running supersonic non- suppressed? Manufacturer Answer

This BCG will perform equally well in non-suppressed applications.

by Killer Innovations, Manufacturer, August 13, 2025
Customer Reviews
Helpful Positive Review
The Icon BCG by Boss, February 23, 2024
Nice BCG, well made, however the bolt is not mil spec. I had planed on using this for a 6mm arc setup, once I got the BCG and went to swap the bolts that’s when realized the size differences. This is completely my fault for not doing my homework. The...
Read More...
1/3 found this helpful
Helpful Positive Review
This is simply the most well-crafted BCG I have ever used or seen. I have been running the SHIP out of this thing. ZERO issues and everything just wipes off when you are done shooting. I can’t wait to see more of what Icon comes out with.
1/1 found this helpful
Most Recent Reviews
ICON Defense BCG by Jose A. Sanchez, November 19, 2025
Very attentive staff, fast/secure delivery, completely as advertised/displayed.
Most Recent Reviews
Icon Defense Integral Gas Key BCG by woggy, Verified Owner, April 13, 2024
Realy like the Nitride finish. Smooth reciprication. Beautifully crafted at the gassport one piece design
Read All 4 Reviews
Color: Black Finish: Proprietary Caliber: 5.56mm Gun Make: AR Platform Gun Model: AR-15 Hand: Right Weight: 11.36 oz

Code: 5K0-BCG-ID03-IDMISC480

MPN: IDMISC480

UPC: 810104452748

List: $334.99Save $16.99
$318.00

made-in-usa-flag Made in USA

Help support American manufacturing! Marked models of this product have gone through rigorous review and been certified by the manufacturer as Made in the USA.

Product Info for Icon Defense Integral Gas Key BCG

Icon Defenses Integral Gas Key BCG sets the standard in the rifle accessories market. With its patented bolt operation, which is 20% more efficient, you can expect reliable performance with every shot. The bolt material is crafted from AISI 9310 steel, ensuring durability and strength, while the carrier material is made from an AISI 8620 forging and HR 15N with a hardness range of 89.5 to 91.0, making it suitable for the toughest shooting conditions. Icon Defense own special coating provides an extra layer of protection and corrosion resistance, ensuring that the BCG withstands extreme shooting conditions. Invest in Icon Defenses Integral Gas Key BCG for the ultimate in rifle accessories and ensure your shooting experience is top-notch.image

Specifications for Icon Defense Integral Gas Key BCG:

Manufacturer: Icon Defense
Color: Black
Finish: Proprietary
Fabric/Material: Steel
Carrier Material: AISI 8620 forging
Bolt Material: AISI 9310
Caliber: 5.56mm
Gun Make: AR Platform
Gun Model: AR-15
Hand: Right
Weight: 11.36 oz
Country of Origin: USA

Features of Icon Defense Integral Gas Key BCG

  • Integral Gas Key: The Icon Defense Integral Gas Key Bolt Carrier Group features an integral gas key design, ensuring a secure and reliable connection without the risk of gas leaks, the need for additional staking, or key shearing off.
  • Patented Bolt Operation: With its patented bolt operation mechanism, the Icon Defense BCG achieves 20% greater efficiency compared to standard BCGs. It delivers exceptional performance even when used with suppressors and reduced gas systems.
  • Increased Gas Chamber and Extended Bolt Stroke: The Icon Defense BCG incorporates an enlarged gas chamber and extended bolt stroke, optimizing gas utilization for improved operation, reliability, and consistent performance.
  • Enhanced Cam Track: The Icon Defense Bolt Carrier Group is equipped with an enhanced cam track, reducing friction, and ensuring smooth bolt movement. This refined design enhances overall performance, reliability, and cycling, providing a superior shooting experience.
  • 100% MPI Tested Bolt Material: The bolt material used in the Icon Defense BCG undergoes rigorous 100% MPI testing, ensuring the highest standards of integrity, quality, reliability, and durability.
  • Optimized for 300 Blackout & Subsonic Ammo: The Icon Defense Bolt Carrier Group is specifically optimized for subsonic ammunition, delivering exceptional performance and reliability with 300BO & subsonic rounds.
  • Bolt Repair and Replacement: Icon Defense provides proprietary bolt parts designed for their carrier body, ensuring easy accessibility for repair or replacement when needed.

Package Contents:

  • Icon Defense Integral Gas Key BCG

Icon Defense Integral Gas Key BCG Orderable Models

List of Orderable Models

  • Icon Defense Integral Gas Key BCG, Black, IDMISC480 , MPN: IDMISC480 , UPC: 810104452748 , Code: 5K0-BCG-ID03-IDMISC480
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