This spec sheet details the key features of the FS1913™ Pistol Stabilizing Brace®.
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The MP5K-1913 Adapter from JMAC Customs is an M1913 rail adapter for HK MP5K/SP89 Clones and the SP5K, which allows for the attachment of the FS1913 side-folding brace. It includes a choate buffer and installs using factory pins. The MP5K-1913 Adapter is made of 7076 T6 aluminum and is black, hard-coat anodized.