I have never seen this product in the BX when I was in the Air Force.
Besides, don't GNC usually have a store in the local Malls?
There will probably be a GNC store nearby. Why not go to their website and see the cities that GNC has their stores and match them up by the city that the AF Bases are located.
Sure, the BX and Commissary sells vitamins but probably not the other specialty products that are sold in GNC stores.
Are you going to base your decision to serve in the Air Force solely on whether a GNC vitamin store is near an Air Force base?
Usually if GNC does not allow the military to see them manufactor the product, then they do not get sold on base, this happened with Monster Milk, until they allowed the military to see how th eproduct was made, I guess GNC thought the military would steal the formula, but the military did not want soldier taking a product that may have steriods in it.
Here is what is in your item:
http://www.a1supplements.com/PrimalDrol-4000-60-Capsules-p-19083.html
If the military has not seen it manufactured, it cannot be sold at GNC, just go off post to a GNC near by and get it instead.
Stick to the products they sell on base.. if there's something in a civilian GNC that's not in the on-base store, its probably because it will show up on a drug test as a steroid. Most stuff in GNC is still being tested, and new laws get passed all the time regarding the legality of some of the products.. meaning some will be considered steroids after their testing is completed.