Looking into Building an AR using the DSA Zm4 piston complete upper, and one of their stripped lowers. Has anyone built with DSA components, how are they?
Posted: 1/28/2006 9:17:48 AM EDT
[#1]
The DSA ZM4 upper is a POF upper. The only DSA part on a ZM4 is the lower...'
TS
Posted: 2/8/2006 8:58:45 PM EDT
[#2]
The ZM4 upper you say is a POF what does that mean?
