Same as this only for the rock and lock swiss system, purely tacticool looking. Novelty, Heck girls pay for big boobs that function worse, why not pay for a big magazines that at least functions the same as the 5 rounder? It all comes down to looks man, looks
ht tp://www.dsarms.com/C-MAG-System-for-SIG-550-556mm_223---SG550/productinfo/SG550/