STRIM rifle grenade ID

[US-Subs]

I picked this one up recently, I'm looking for a model number. Dated 1953, it is very similar to the STRIM previously identified on the forum as an M52, shown beside it in the second photo. Anyone?

 

[weberoed]

FRENCH GRENADES, RIFLE, 32-MM, HEAT AND FRAG, MODEL 1952 (STRIM)