White Label Armory AR-15 Extractor Spring Bolt Carrier Group Five Pack Black. Designed to fit all standard AR15 size bolts these extractor springs are essential for maintaining reliable extraction and cycling. As wear items they should be replaced regularly and this convenient 5-pack ensures you have spares on hand when needed. Specifications for White Label Armory AR-15 Extractor Spring Bolt Carrier Group: Manufacturer: White Label Armory Color: Black Gun Make: AR Platform Gun Model: AR-15 Features of White Label Armory AR-15 Extractor Spring Bolt Carrier Group: Mil-Spec extractor springs Fits all standard AR-15 size bolts Essential wear items for regular maintenance Includes 5 extractor springs Ensures reliable extraction and cycling Designed for long-lasting performance Package Contents: White Label Armory AR-15 Extractor Spring Bolt Carrier Group What firearm models does the manufacturer say White Label Armory AR-15 Extractor Spring Bolt Carrier Group is compatible with? The manufacturer says that White Label Armory AR-15 Extractor Spring Bolt Carrier Group is compatible with AR-15White Label Armory WLA-PAC-3004-05: AR-15 Extractor Spring Bolt Carrier Group Five Pack Black