This system consists of a T18 nose sensor, a T771 tail fuze and a T25 or T6 type tail drive.
Fuze consists of a M20A1 proximity nose element in the nose fuze well a [unreadable] impact fuze and a T56 adapter booster in the tail fuze.
There are no explosives in the nose.
No information about functioning.
MIL-HDBK-146, Fuze Catalog (1982)