Colt original OEM part; this is the heavy-duty extractor upgrade or replacement. For a bolt tune-up, this is a good place to start for an M16, M4 or AR-15. This is also an upgrade for short barreled rifles, like a 10.3″ Mk18 which sees extreme pressures, high-energy and rapid bolt action.
Contains spring and the rubber bumper.
Manufacturer’s Part Number SP 64026
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