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Mfg Item #: STOCKXFOLDM4BLK
Sig's factory replacement M4 stock installs easily on your MCX/MPX via the receivers 1913 interface. This stock option gives you the ability to install standard AR-15 types buttstocks on your MCX/MPX. *Note- Magazine holder is removable but does not accommodate MPX magazines.
Shipping Width | Y |
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Shipping Height | F |
Shipping Length | 2.80 |