AB ARMS BOLT ASSEMBLY – 5.56MM AR-15 NICKEL BORON

FEATURES–Needs virtually no lube during use-The manganese phosphate coated extractor has a surface finish that provides superior extraction during firing-Made in USA PRODUCT SPECIFICATIONS: Dimension     1.10 X 3.05 X 5.50 Height     1.1000 Width     3.0500 Length     5.5000 TYPE/COLOR     BOLT ASSEMBLY SIZE/FINISH     AR-15 MATERIAL     STEEL AR-15 ACCESSORY     Y