"Caliber" refers to the size of the bullet the gun fires, or more specifically, the size of the bore, which is the size of the hole in the barrel.
There are several manufacturers who make or have made firearms in that calibre, and cost varies greatly.
In relation to? Without more clarification, I can only assume that you're talking airsoft. GBB for airsoft stands for Gas BlowBack. I have never seen this term used in relation to firearms. That doesn't mean that it is not. I would assume that the definition would be the same.
.17 HMR is a smaller calibre cartridge than the .22. There are several firearms which use the cartridge. The Henry Golden Boy is a lever action rifle available in this calibre, just to give an example.
I STands for Inter S stands for Services P Stands for Public R stands for Relation Inter.Services.Public.Relations........
Long Term Relation
In the case of firearms, it stands for Winchester Magnum Rimfire.
SWD stands for Sylvia and Wayne Daniels
"CCEB" on a Cartier watch likely refers to the Cartier Calibre de Cartier Extra-Flat model. The "C" stands for "Calibre," which is a term used by Cartier to denote their mechanical movements. The "EB" stands for "Extra-Flat," indicating that this particular model has a thinner case compared to standard models. Overall, "CCEB" signifies a specific version of the Calibre de Cartier watch line with a slimmer profile.
ECS stands for Environmental Control System in relation to the aerospace industry.
It stands for Sport Technologies
In relation to the Stock market, TLT stands for : iShares Barclays 20+ years Treas Bond. It's indexed on the NYSE and currently has a value of 120.58.
Probably best to go to your local firearms dealer and ask them to price it for you. what calibre is it and where do you live ? that's going to help with the prices.