embodiment is of a conical or frusto conical longitudinal geometry the nut 28 is secured to the tapered end vertex of the reflection suppressor 30 nut 28 may be secured by any known means but is preferably welded thereon as stated above it is understood that reflection suppressor 30 may be configured without nut 28 and welded directly to the end plate 22 on the outlet side of flame arrestor 10 or affixed directly to the fill media contained within internal cavity 11 fig7 and 8 show an alternate reflection suppressor 34 of the present invention in this alternate preferred embodiment reflection suppressor 34 has a pyramidal geometry as with the embodiment 30 the alternate embodiment 34 of fig4 is secured to nut 28 in the manner described above in embodiment 30 fig9 and 10 show an alternate reflection suppressor 35 which has a hemispherical geometry the geometries of the present embodiments of fig5 7 and 9 can each be considered to include a vertex 32 an altitude 36 and a base 38 the side walls of a reflection suppressor 30 34 or 35 can be if desired porous or perforated the bases of such reflectors can be continuous porous perforated or open a reflection suppressor in the inventive combination may incorporate if desired two successive serially arranged and centrally positioned tapered bodies that are preferably each conically configured such as the bodies 94 and 95 in the fragmentary alternative embodiment shown in fig1 both bodies 94 and.