First of all, there are far more knowledgeable veterans on this thread to give you a more informative response. That said, I clean up the aisles in here so if you are waiting for some immediate response, I'm probably the janitor you didn't want to hear from
The GSO 4.5 BC is a new model in the Survive! Knives family so apart from the presented artist's rendering and the info on their site, there is no other publicly available review on this model. Once the preorder window closes for the model which you are seeking out, you will NOT be able to place an order for the said model. The only other chances which you will be getting are as follows:
A- If Survive! offers the said knife during their Mondays' Sales and most probably the units offered will be what they call Factory 2nds AKA "Ugly Bettys" as they refer to their 2nds.
B- finding one on the secondary market, including on here or on eBay.
To familiarize yourself with the slangs and acronyms used, please thoroughly read
THIS.
Survive! currently does NOT guarantee any definite fulfillment target for any of their models, whether in production or in the preorder phase. This is a VERY IMPORTANT point for your to consider and base your decision upon.
Full disclosure, I already have one on preorder and most likely will add one more on the last day of the preorder's last call!