Constructed of 6061 aluminum and finished in Type 3 Hardcoat andozing, the M11 CZ Scorpion Stock Adapter allows for the use of a CZ Scorpion Stock (Not included) on the M11 or M11 .380 (baby mac). The magnet on the CZ Scorpion stock can be utilized to retain the stock in the folded position however this is dependent on stock extension position, upper receiver style being used, and variances between receiver length on the M11 vs. The M11 .380. To aid in folded retention when the magnet isn’t able to be utilized, an included shim washer is used on the adapter hinge to tighten tolerances in order to prevent the stock from swinging open freely in the folded position by adding some tension at the hinge. Generally you won’t be able to fire while in the folded position due to the inherent location of the ejection port on M11’s.