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Polymer Ejection Port Cover
COMPATIBLE WITH AR-15/M4/M16 PLATFORM;
WINDOW MADE OF LIGHTWEIGHT AND HIGH-STRENGTH POLYMER, AND OTHER COMPONENTS MADE OF CARBON STEEL;
HAS AN INTERNAL LEDGE TO BETTER SEAL THE UPPER OPENING;
NO CORROSION PROCESS OCCURS DUE TO ITS POLYMER CONSTRUCTION;
THE WINDOW OPENING PROCESS DURING FIRING AND HANDLING DOES NOT MARK/DEFORM THE LOWER RECEIVER;
TORSION SPRING DESIGNED WITH A PROFILE TO AVOID MARKING/DEFORMING THE LOWER RECEIVER.
