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
$449.00
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.Â
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.
Specs:
- CALIBER: 5.56 mm
- CONSTRUCTION: Steel Alloy
- COATING: DLC and S-Line Anti-Friction Coatings
- WEIGHT: 13.6 oz (385 g)
Additional information
Customer Reviews
Related products
-
SUREFIRE X300U-A-TN LED HANDGUN OR LONG GUN WEAPONLIGHT
$299.00
SUREFIRE X300U-A-TN LED HANDGUN OR LONG GUN WEAPONLIGHT
$299.00Experience the enhanced version of the highly acclaimed SureFire X300UA Ultra flashlight, now with an astonishing 1,000 lumens of LED-generated output. This remarkable upgrade, combined with the precision TIR lens, produces a far-reaching high-intensity beam that offers unparalleled visibility and the ability to positively identify threats at significant distances.
- Best-selling SureFire handgun weapon light with 1,000 lumens
- Rapid Rail-Lock® system for quick attachment/removal
- Intuitive grip-friendly activation; options for pistols and long guns
- Recoil-proof LED
- TIR lens for smooth, far-reaching light with a center spot
- Ambidextrous momentary- and constant on switching
- Secure attachment to Universal and Picatinny rails
- IPX7 waterproof (1m/30m)
- Tough Mil-Spec hard-anodized aerospace aluminum body
- Optional pressure-activated DG and XT remote switches
- Precision control without altering grip
- MADE IN THE USA
Out of stock
Want to be notified when this product is back in stock?
Get notified when this product is back in stock
Quick View -
SureFire X300U
$359.00 – $379.00
SureFire X300U
$359.00 – $379.00X300U-A: The best-selling SureFire X300U-A handgun WeaponLight delivers a stunning 1,000 lumens focused by a precision TIR lens to create a smooth, far-reaching light beam ideal for close- to medium-range engagements.
- Generates 1,000 lumens from a recoil-proof LED
- Precision TIR lens creates a smooth, far-reaching beam
- Ambidextrous switching for easy instant activation
- Rail-Lock® enables rapid attachment and removal
- Rugged aluminum body is IPX7 waterproof
- Fits Universal and Picatinny accessory rails
- Mil-Spec hard anodized for extreme durability
X300U-B: The SureFire X300U-B WeaponLight generates 1,000 lumens of bright light focused by a precision TIR lens to create a smooth, far-reaching beam ideal for identifying threats at distance in low light conditions.
-1,000 lumens from a high-performance LED
-TIR lens produces a smooth, far-reaching beam
-T-slot thumbscrew clamp for rapid attachment/removal
-Rugged aluminum body is IPX7 waterproof
-Fits handguns with Universal or Picatinny rails
-Ambidextrous switching for instant activation
-Accepts optional pressure switches for precision controlQuick View -
SureFire M340DFT-PRO
$399.00
SureFire M340DFT-PRO
$399.00The M340DFT-PRO Turbo Mini Scout Light Pro produces up to 95,000 candela of tightly focused light for long-range target identification. Its precision reflector and 650 lumen output create the farthest reaching beam of any SureFire compact long gun light.
- Up to 95,000 candela focused beam
- 650 lumens with SF18350 battery
- Low-Profile Mount for optimum positioning
- Dual fuel – rechargeable or 123A battery
- Aluminum body is IPX7 waterproof
- Fits rifle rails with MIL-STD or M-LOK mount
Quick View -
SureFire SOCOM 4-Prong Flash Hider
$169.00
SureFire SOCOM 4-Prong Flash Hider
$169.00The SureFire SOCOM 4-Prong flash hider provides significant flash reduction and precise alignment for SOCOM Series suppressors.
- Reduces flash better than 99% over bare muzzle
- Multiple bearing surfaces align suppressor
- Precision machined stainless steel
- Available for 5.56 and 7.62 calibers
- DLC coating protects against erosion
- Converts ARs for use with SOCOM cans
Quick View