Primos PS932MC Slide Bugle Replacement Diaphragm Red/Yellow 2 Per Pkg
https://www.tandktactical.com/shop/010135002923-primos-ps932mc-slide-bugle-replacement-diaphragm-red-yellow-2-per-pkg-28839
https://www.tandktactical.com/web/image/product.template/28839/image_1920?unique=b0daa58
Primos Slide Bugle diaphragm replacements.
