Factory SCAR 17S 20rd Black Magazine.

Tangodown has taken the same U.S. patent pending technology from its ARC-L 30 round magazine and incorporated it into a compact 20 round form.  Perfectly suited for snipers and designated marksmen who need to get low to the ground.  The 20 round ARC mag is also perfect for M4’s and AR-15’s which are mounted upright in between the driver and passenger seats in law enforcement emergency vehicles.

These are factory Sig Sauer magazines.

The next-generation PMAG 30 GEN M3 Window is a 30-round 5.56x45 NATO (.223 Remington) polymer magazine for AR15/M4 compatible weapons that features transparent windows to allow rapid visual identification of approximate number of rounds remaining.  Along with expanded feature set and compatibility, the GEN M3 Window incorporates new material technology and manufacturing processes for enhanced strength, durability, and reliability to exceed rigorous military performance specifications.  Modified internal and external geometry also permits operation with a wide range of non Colt®-spec platfor