Mojo, I thought this thread was familiar.

You asked the same questions 2-3 years ago:
http://forums.rocketshoppe.com/show...hlight=BNC-20CB

In that thread I posted a picture of a semroc BNC-20CB and an original Estes BNC-20CB.

I guess you forgot....

__________________
-Wolfram v. Kiparski
NAR 28643 - TRA 15520
MTMA Section #606 President