So I've "built" AR platform, AK platform, MAC style closed bolt, and Uzi-influenced closed bolt guns. By that I mean percentage built receivers and parts kits/demills, as well as made-from-scratch lowers with parts kits/demills. All of these guns are pretty well documented for home brewing (lots of information/resources) and don't take exceptional welding skills or crazy tolerances.
I've owned an SP-89 and two flavors of CETME/G3 but can't say I'm an expert in their operations let alone assembly beyond field stripping. In doing some digging it seems like there's not much info out there - maybe due to costs and popularity - compared to other platforms. Everyone makes some flavor of AR, many make some flavor of AK, and MACs/Uzis were cheap and common as dirt. HK not so much. So far fewer tutorials and not something you run across in armorers classes unless it's HK.
I've got a roller-lock style 9mm serialized receiver, less the trunnion, from a great manufacturer (if anyone other than HK can be said to be). I'm looking at demilled parts kits from $1,200 to $2,200 and a lot of people are saying that the tolerances around the trunnion are the toughest part... also that there's some tricky welding. It is apparently a great platform to drop a registered pre-may sear into.
So... who's got experience with these? $1,200 parts kits seem like a big gamble if something goes wrong. With the above builds under my belt and some gunsmithing experience, should I attempt this totally redundant build (I have several PCCs - then again, none are sear ready) or consider passing the receiver along?
I've owned an SP-89 and two flavors of CETME/G3 but can't say I'm an expert in their operations let alone assembly beyond field stripping. In doing some digging it seems like there's not much info out there - maybe due to costs and popularity - compared to other platforms. Everyone makes some flavor of AR, many make some flavor of AK, and MACs/Uzis were cheap and common as dirt. HK not so much. So far fewer tutorials and not something you run across in armorers classes unless it's HK.
I've got a roller-lock style 9mm serialized receiver, less the trunnion, from a great manufacturer (if anyone other than HK can be said to be). I'm looking at demilled parts kits from $1,200 to $2,200 and a lot of people are saying that the tolerances around the trunnion are the toughest part... also that there's some tricky welding. It is apparently a great platform to drop a registered pre-may sear into.
So... who's got experience with these? $1,200 parts kits seem like a big gamble if something goes wrong. With the above builds under my belt and some gunsmithing experience, should I attempt this totally redundant build (I have several PCCs - then again, none are sear ready) or consider passing the receiver along?