CZ 455/457 Magazine Block Chamber Flag When you are done a course of fire, pop out your magazine and slap in this custom designed chamber flag/ magazine block which will show everyone that your rifle is empty and clear. For CZ 452, 455 and 457 rifles 3-D Printed Blocks the action of the rifle open and clearly displays “Safe” to all MADE IN CANADA VIEW MORE MAGAZINES AT VICTORY RIDGE SPORTS HERE
