SUREFIRE SF-OBC-556 OPTIMIZED BOLT CARRIER GROUP
The SureFire Optimized Bolt Carrier (OBC) is a revolutionary invention crafted by Jim Sullivan, a distinguished designer who played a key role in creating the iconic M16 firearm.
- Optimized for 5.56 mm/.223 caliber rifles and carbines
- Long-stroke design enhances reliability
- Dual-spring dwell weight delays bolt carrier direction change
- Improved cam path delays bolt unlocking
- Self-lubricating, Diamond-Like Carbon (DLC), S-Line coatings reduce friction
- Mil-Spec bolt proof-tested, to meet the highest standards
Description and Specifications
The SureFire Optimized Bolt Carrier (OBC) is a revolutionary invention crafted by Jim Sullivan, a distinguished designer who played a key role in creating the iconic M16 firearm. Specifically engineered for M4/M16/AR variant weapon systems, this enhanced BCG introduces a new reliability standard for both suppressed and unsuppressed firing scenarios.
The SureFire Optimized Bolt Carrier (OBC), sets a new reliability standard for M4/M16/AR variant weapon systems, catering to both suppressed and unsuppressed firing.
At the heart of this AR-15 BCG design is a patented mechanism that significantly enhances the feeding of ammunition from the magazine, doubling reliability. By doing so, it virtually eliminates the occurrence of bolt-over-base malfunctions, ensuring smooth and uninterrupted operation.
Moreover, the SF-OBC-556 incorporates a unique feature that intelligently delays the unlocking of the bolt during the firing sequence. This intentional delay grants expanding gases more time to exit the bore, effectively reducing the back-pressure gases that exit the upper receiver group. As a result, the shooter experiences a notable decrease in recoil and improved control over the weapon, allowing for enhanced target tracking and overall weapon handling.
The inclusion of a neutrally balanced counterweight within the enhanced BCG serves to optimize the lock-up of both the carrier and barrel extension. This innovation significantly minimizes bolt bounce, further enhancing the reliability and stability of the weapon system.
In addition to its performance-enhancing features, the OBC boasts an advanced anti-friction coating, ensuring minimal friction during use. This coating not only contributes to the OBC’s remarkable reliability but also simplifies the cleaning process, making maintenance and upkeep a breeze.
By embodying these cutting-edge advancements, the SureFire Optimized Bolt Carrier represents a groundbreaking innovation in firearm technology, revolutionizing the performance and reliability of the M4/M16/AR variant weapon systems, particularly in suppressed and unsuppressed firing conditions.
- CALIBER: 5.56 mm
- CONSTRUCTION: Steel Alloy
- COATING: DLC and S-Line Anti-Friction Coatings
- WEIGHT: 13.6 oz (385 g)