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Yes it is Gary. Fail Zero AR-15 Complete Bolt Carrier Group 5.56 NATO Full Auto Carrier Nickel Boron Black Top Coat Finish.

yes it is a complete full auto bolt carrier group

Hi Gary. Yes it is complete. Fail Zero AR-15 Complete Bolt Carrier Group 5.56 NATO Full Auto Carrier Nickel Boron Black Top Coat Finish. FULL SPECS -- Specifications and Features: Fail Zero Bolt Carrier Group FZ-M-16-401-NH-BLACK -- 5.56 NATO -- Complete Bolt Carrier Group -- Full Auto Carrier -- No Hammer Included -- All Critical parts are coated with EXO Nickel Boron technology -- Patented Nickel Boron reduces friction/improves performance -- Black Top Coat Exterior -- ------- Nickel Boron Treated Parts--- Bolt and Extractor- Bolt Carrier- Extractor- Cam Pin- Carrier Key- Firing Pin- ----------- Fits: AR-15's chambered in 5.56 NATO/.300 AAC Blackout

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