Mismatched feedramps

[spideyar]

Are you sure you don't actually have m4 feedramps but the extension and the receiver are simply misaligned a bit? I remember this being an issue with PSA uppers in the past. I personally wouldn't accept an upper that had a M4 receiver but a rifle extension. That is the worst of the mismatches. Since you're in Centennial I'd have Rob at Bowers Tactical look at it for you to verify what you have. He could probably dremel fix it properly as well.

Thanks for the reply. Fairly sure it's a M4 receiver / rifle extension. I finally got a decent picture of mine - looks like they aren't both M4 to me and more like the bottom left example in the first post.



I might run by Bowers to get their input once I get word back from PSA. Maybe PSA will offer a remedy.

Yeah I am not thrilled with this - the upper was affordable but shouldn't be put together with parts that aren't going to play nice together.