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3 prong vs 4 prong? - Fossberg 500 (self.help)

submitted 1 month ago by GlassHammer to c/help

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I'm planning a Fossberg 500 (space trench) build and saw under "thick receivers" there's two options. 3 prong and 4 prong. Anyone know what the differences are? I've looked them over and can't tell. TIA!

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[–] kaewon 2 points 1 month ago (1 children)

This is py2a 500 not fossberg. The prong nut is an odd choice for what they are using to hold the ejector screw on. There are remixes of the normal recievers and the fossberg use a standard nut or square nut. I dont think I saw one for the space trench.

[–] GlassHammer 1 points 1 month ago

I totally thought the py2a 500 was just a reinforced version of the fossberg. Thank you for the information!

If anyone else sees this and has the same question, the "3 vs 4 prong" part is a threaded insert on the opposite side of the ejection port.