First-time rifle owner: purchased an MP15 Sport 2 brand-new from an FFL here in California. Any other California owners figure out how to take apart this rifle? The pictures in the manual look very different from my actual firearm, and I suspect it's because of differences to make it California compliant.

Page 21 of the manual (https://snwcdnprod.azureedge.net/sit...19_3005747.Pdf) makes it look super easy. Remove magazine, activate safety, push bolt release, then push in the takedown pin from the left of the rifle and pull it out from the right-hand side.

Except my bolt release looks totally different. It has no "top" to push and is completely immovable. My takedown pin also looks different, and while I can push from the left it to partially release it, no amount of force allows me to pull it from the right-hand side of the rifle.

What is stupid me missing?

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