That's a beauty. I see you have a real A2 type lower not just a carry handle that goes on a rail. Love the look!
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This is the last one I built, nothing specially really, a beater rifle basically and kind of a mongrel with different stuff from different eras but she's a good shooter and I like her. You can see the flashlight here. If you want to get one of these clamps be careful a lot of them are bad quality and/or are just for shotguns (I have one on my mossberg) but claim to fit rifles too.
This is the one I'm using here, cheap Chinese shit but works just fine for me.