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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.
| Type | Folding Stock |
|---|---|
| Finish | Black |
| Series | Stock |
| Firearm Type | AR-Platform |
| Firearm Model | Sig MPX |