Why didn't HKs guns dominate in the cold war and late coldwar/post cold war era? The MP5 was popular, the G3 was cheaper than the FAL and hk style guns were popular with special forces because they worked with short barrels and suppressors when M16s and FALs wouldn't. why didn't 5.56 HK guns get adopted en masse during the 70s, 80s and 90s? most guns adopted during that time period were just ar-18 clones, including the g36. now it's just AR-15 clones an piston AR-15 clones

I wonder if an M16 could function in Antarctica