American Built Arms Company presents the Side Folder Mechanism (SFM) for the MOD*X GEN III Modular Rifle System and other MOD*X products. This part can be used to upgrade your existing MOD*X GEN III Fixed Stock version to create a lightweight side folding chassis. Assembly takes less than 10 minutes and does not require any special tools. The SFM™ is manufactured with 6061 aluminum and hard coat anodized to Mil-Spec Type III specifications.
Also works with the KRISS Vector after-market butt stocks.