i've pondered once in a while something along these lines. not what guns a mexican might have but why have we not seen any relative advances in firearms technology. win you think about it, a glock isnt that much different from a flint lock. they both fire a slug of lead through a barrel with iron sights. the only real improvement is the self contained cartridge, but thats not really a far cry. from loose powder to paper cartridges to modern center fire. basically all we've done is refined the technology a tad, and from the 16oos till now, it's been a very slow process. i do wonder what guns will be invented. or what innovations we'll see in firearms technology. using plastic instead of wood and steel is not innovative, the gyrojet pistol was in theory innovative, except it failed.