The good ole AR-15 rifles which are going on 40yrs old are still in use here in Australia! I have seen many XM16s and early ARs marked .223 still in use. A little worn, but news bbls, butts PGs etc. The receivers are old pre 1970 Aussie purchases for our troops in Viet Nam. Yes, we were there, (Long Tan, Nui Dat, Vung Tu etc) sent over 50,000 troops. SAS, Infantry, all trades and Corps too.
Anyways off the topic there..... so now the Govt is gonna A2 upgrade, buying A2 parts and putting them on the old receivers. Many GM Hyrdos and standard Colts (A1s) too. But goes to show you, that even after all this time, of use and abuse, the oldtimers are still in use. Some even have the old butts without the butt trap, and the triangular handuards too. Chrome carriers and bolts, but all bird cage flash supps and all A1 uppers, some even A2 uppers. A real combination of servicer since the mid 60s here in Aussie. So hats off to the Colt people who have done an excellent job, and to the RAEME (Royal Australian Electrical and Mechanical Engineers) Armourers, who keep the fleet going!. 'Good on ya's all'. - 1feral1 Sydney