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| Sun | Appointment only |
| Mon | 11am - 7pm |
| Tue | 11am - 7pm |
| Wed | 11am - 7pm |
| Thu | 11am - 7pm |
| Fri | 11am - 7pm |
| Sat | 11am - 7pm |
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 |
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