FAIL ZERO BOLT CARRIER GROUP – .224 VALKYRIE AR-15

Description FEATURES-Bolt & Extractor (.224 Valkyrie & 6.8 SPC compatible)-M16 Cut Bolt Carrier-Cam Pin-Carrier Key-Firing Pin PRODUCT SPECIFICATIONS: Dimension     1.60 X 3.80 X 10.95 Height     1.6000 Width     3.8000 Length     10.9500 TYPE/COLOR     AR15 COMPLETE BOLT CARRIER SIZE/FINISH     .224 VALKYRIE/CLASSIC FINISH MATERIAL     STEEL OTHER FEATURES:     EXO NICKEL BORON TREATED,      DROP IN INSTALL FOR MOST      MIL-SPEC .224 VALKYRIE      UPPERS