AR15.Com Archives
 BFA Help Yugo underfolder
Durango_USMC  [Member]
10/1/2010 11:32:06 PM
Howdy,

I've had a Yugo underfolder for a couple years now and its seeing service most recently for use in active shooter training for my Department. I love it because it actually rocks a hallway with the blanks andmakes the AR sound lke a cap gun. But I'm having issues with cycling all around from feeding to ejecting. If anyone has any tips or suggestions I'd greatly appriciate it.

This is the exact same model of BFA I'm rnning at this time although I got mine from CTD who's service was terrible and sent it to me USED when they said new and it looked nothing like what was advertised. I digress but I'm not sure if the fact it was used has any bearing on it.

BFA pic

Thank you again.
Richard-ar15  [Member]
10/2/2010 12:28:20 PM
The BFA in your photo is East German, but it shouldn't matter because the port is the same size as a Yugoslavian
one: 4.75 mm.

The gas cutoffs in the gas blocks of Yugo AKs are often eroded enough that gas bleeds out and affects the cycling.

Maybe yours is leaking enough to affect blank firing, but not enough for live rounds? I'd strip it and take a look.

Inspect the rings on the part pictured at lower right. It should fit in the gas block without much (if any) wiggle.