Doesn't fit - Armaspec AR15 BBS Braided Buffer Spring

Doesn't fit any of the buffers I have, ranging from Odin works adjustable one, stock carbine buffers, pistol buffers. The flange or spacer included doesn't fit over any of them, the inner diameter is a bit too small. The spring doesn't slide over the buffer either because inner diameter is too small also. Not universal as advertised. Even if it did fit, I have doubts it makes much difference in recoil or sound. Basing this on my experience with the Geissele super 42 braided spring and buffer. Difference is very subtle, if any at all.