I didn’t know this was out there for macs. I had to google what you were talking about. I was aware of super safety’s thoSaw video on Reddit, looks like a hybrid of versa lower with a mac daddy upper. I have a M11/9 and I’m thinking wont need to buy another MG after this.
Please pardon my ignorance but what is a Versa LOWER?


Great now you tell me I didn't need to buy a trasnferable miniuzi last weekend LOLScott,
A standard Mac style bolt has a surface to activate a Super Safety. I posted the link.
An AR15 Super Safety has NO trigger slap.
They are now making SSes, trips and reinforcing lowers for semi M11/9 uppers. These 3D printed M11 lowers use an AR15 FCG and a Super Safety with NO trigger slap. For about $300 someone could assemble an OEM M11/9 SMG with no paperwork.
I hate to say it but currently, there is no reason to buy a M16, HKs or a MAC SMG. Not when you can have the same result with a AR15 and a legal $80-100 Super Safety.
I think we have arrived at a time when the biggest threat to machine guns are the people who currently own them and are tring to protect their investments.
They are now making SSes, trips and reinforcing lowers for semi M11/9 uppers. These 3D printed M11 lowers use an AR15 FCG and a Super Safety with NO trigger slap. For about $300 someone could assemble an OEM M11/9 SMG with no paperwork.
I think we have arrived at a time when the biggest threat to machine guns are the people who currently own them and are tring to protect their investments.
I think your safe. I have not seen a SS for a semi Uzi. At least not yet.Great now you tell me I didn't need to buy a trasnferable miniuzi last weekend LOL

I dunno. The last Subgun match I shot we had guys running super safe in 9mm carbines. Kept up with us MG folks. One of them wasn't real reliable but still did better than the MP5s that were there.An SS or FRT in a semi version of an open bolt Subgun is going to shoot at higher RPMs and have harsher recoil than the open bolt version. Advanced Primer Ignition makes a big difference in the open bolt guns. I think the Open Bolt Subguns will perform significantly better than a potential semi Subgun with an SS or FRT.
So… if there was a SS or FRT for a MAC or UZI, I don’t think it would be a pleasant experience firing one and it keeping it on target would be difficult. It would be a novelty, but not a desirable combination.