FAIL ZERO BOLT CARRIER GROUP – 5.56MM SEMI-AUTO AR-15

Description FEATURES-Bolt & Extractor (5.56/.223 compatible)-Bolt Carrier-Extractor-Cam Pin-Carrier Key-Firing Pin PRODUCT SPECIFICATIONS: Dimension     1.65 X 3.80 X 10.30 Height     1.6500 Width     3.8000 Length     10.3000 TYPE/COLOR     AR15 COMPLETE BOLT CARRIER SIZE/FINISH     5.56MM/CLASSIC FINISH MATERIAL     STEEL AR-15 ACCESSORY     Y OTHER FEATURES:     SEMI-AUTO BCG,      EXO NICKEL BORON TREATED,      DROP IN INSTALL FOR MOST      MIL-SPEC AR15 UPPERS NO DIRECT SHIP TO CALIFORNIA