Make of 2mm thickness Polycarbonate
Tested by 160m/s 0.2 BB in 10mm distance.
fit for L3 , also fit for replica toys.
100% clear and NON SIGHT DISTORTION , sight the same as optical glass.
Almost fit all L3 EOtech Holo weapon sight ,511/512/516/
517/551/552/553/556/557/HHS1/HHS2/XPS2/XPS3/
EXPS2、EXPS3、EOLAD and the replica toys (Fitness on toy depends on which manufacturer , and it will more perfect use on real L3 EOTech than on toy).