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Surefire Optimized Bolt Carrier System, Includes Long-Stroke Buffer And Improved Buffer Spring
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Surefire
Surefire Optimized Bolt Carrier System, Includes Long-Stroke Buffer And Improved Buffer Spring
- SureFire’s next-generation bolt carrier group, optimized for 5.56 mm/.223 caliber rifles and carbines
- Long-stroke design increases reliability when firing suppressed or unsuppressed
- Includes optimized bolt carrier, buffer spring and long-stroke, H-weight buffer
Double Down on Reliability.
Invented by Jim Sullivan, one of the original designers of the M16, the SureFire Optimized Bolt Carrier (OBC) doubles the reliability of any M4/M16/AR variant weapon system during suppressed and suppressed firing. Its patented design allows more time for reliable feeding of ammunition from the magazine and nearly eliminating bolt-over-base malfunctions. The OBC also delays unlocking of the bolt during the firing sequence, which allows expanding gases more time to exit the bore, in turn reducing back-pressure gases exiting the upper receiver group. Additionally, the neutrally balanced counterweight improves carrier and barrel extension lock-up, nearly eliminating bolt bounce. The OBC reduces felt recoil for better target tracking and greater weapon control when firing. Coated with an advanced anti-friction coating, the OBC resists friction during use and makes cleaning easy.
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