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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.
| Finish | Black |
|---|---|
| Additional Feature 1 | Uses 1913 Interface |
| Additional Feature 2 | Folding AR-15 Buffer Tube |
| Additional Feature 3 | Use on M4/AR Style Stocks |