The BCM Extractor Spring is a heavy coil design made for the increased extractor tension required on many AR15, M4, M16 short barreled rifles. This product also improves the reliability on a standard 16” and 14.5” carbines.
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Cross Armory CRSL Stock Lock Converter Allows you to Convert your Adjustable Stock to a Fixed Version; made of 7075-T6 Aluminum with Black Finish for AR-15, M4
$35.50
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