This is a Maglula ltd. Mag Loader/Unloader known as the Strip Lula chambered in 223 Remington, model SL52B.
Since 2001" Maglula has manufactured professional military-grade tools for loading and unloading magazines. These products save valuable time at the range" field" armory and prevent pain associated with loading and unloading magazines.
Features:
Takes One-Third the Time of Thumb Loading
Durable Polymer Construction
Reliable and Painless