
I know this early model with the long multi-slotted muzzle brake wasn't the most widely exported variant but I am keen do do something other than a green soviet example. Normally I do my research before purchasing but it was an impulse buy as it was in a half price sale!
My references indicate this model was exported only to Cuba (consequently used in Angola) and Laos. I can find no pictures to support Cuban/Angolan service and derelict Laos examples aren't particularly inspiring.
However I recentl came across this picture of three Cambodian PT-76s:

Larger version available here:
http://i47.photobucket.com/albums/f178/HappyAsian/VietNam/CambodianArmyPT-76a.jpg
Is it my imagination or does the PT-76 in the foreground have the long multi-slotted muzzle brake? It definately looks different to the barrel of the PT-76 directly behind it which has the later double-baffle muzzle brake.
I understand that Cambodia received a total of 20 ex soviet service PT-76 in two batches each comprising of 10 examples in 1983 and 1989 respectively. All other photos I have found of Cambodian PT-76 seem to indicate the later double-baffle muzzle brake examples but pressumably if these were coming from ex soviet stocks is is not inconceivable that a one or more earlier examples were included. Additionally Cambodia operated a similiar number of Chinese Type 63 (Chinese PT-76 with dirrerent turret and barrel) but this is definately not one of them.
Furthermore can anyone confirm the blue paint scheme of these vehicles? Interestingly the turret hatch on the three vehicles acts seems to remain a more standard shade of green.
Does anyone have any thoughts on this?