VFZ
real steel(non mil type)
refer to this web pages, we can find that, now the type which vva are using is the full auto hammer. BUT VFZ.
http://www.notpurfect.com/main/ar15.htm
AR-15 Trigger group
[size=-1]Hook milled from hammer, no extension on disconnector, and less radical arc on selector switch. Internal portion of trigger is narrower |
Top=AR-15 bolt carrier; Bottom=M-16 carrier
[size=-1]Note the rear of the carrier (left side of photos) where the AR-15 unit has been milled further back, than the M-16 version. |
 M-16 Standard Full Auto Trigger group
[size=-1]Note the hook on the upper portion of the hammer, also the extension on the back of the disconnector. |  M-16 Tri-Burst Trigger Group
[size=-1]The Trigger group of the M-16A2, is nearly identical to the standard group, except for the special disconnector, and the ratchet set on the auto sear. Along with many other changes, that A2 version of the M-16 features three round burst capacity, but no full auto fire. |
more over, i found that vfz one still have a big tooling line in front of the lower
