Surefire Optimized Bolt Carrier System, Includes Long-Stroke Buffer And Improved Buffer Spring

Surefire Optimized Bolt Carrier System, Includes Long-Stroke Buffer And Improved Buffer Spring

Surefire
SKU:
SF-OBC-556
|
UPC:
084871327367
Availability:
Available to Military and LE Agencies ONLY.

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Description
  • 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.