This BB Proof Lens has Safe Working Load: 3J. It is made for Trijicon ACOG killFLASH 'AGF-H ARD' (i.e. ACOG 4x32 series).
Installation:
1) unscrew the killFLASH body to remove the honeycomb;
2) replace the honeycomb by our BB Proof Lens;
3) place the O-rings on both sides of the Lens (i.e. front & back);
4) screw the killFLASH cap tightly on the killFLASH body.