Can anyone id this bolt?

[Pumpytrilly1]

I can't figure out what this white bolt is. For some reason it reminded me of a spyder bolt, but nothing came up on google.

Bottom black bolt is an impulse bolt for reference.

[Toestr]

I'd say B2K.

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[Jonnydread]

I'd say B2K.

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I was thinking the same thing.

[autococker04]

Thirded. This is a b2k4 bolt with the back cut off.

[scottieb]

I'd say you have a Spyder EM1 bolt. 👍