What is this AR-15 LPK part?


Marstar was selling a bunch of M16 lower parts kits a couple months back. Perfectly legal and common. You just don't put in the parts that don't fit.

Looks like they are still available. How's the quality of these kits?

Would it be a bad idea to install FA disconnector and safety? Switched into third gear, the latter will disable the disconnector and lead to an array malfunctions, right?
 
Looks like they are still available. How's the quality of these kits?

Would it be a bad idea to install FA disconnector and safety? Switched into third gear, the latter will disable the disconnector and lead to an array malfunctions, right?

It can cause a reset problem when it auto loads a round. Possibly uncontrolled burst/FA depending on parts and tolerances.
 
It can cause a reset problem when it auto loads a round. Possibly uncontrolled burst/FA depending on parts and tolerances.

More likely (by a factor of thousands) that you'll get hammer follow and then nothing. The gun essentially becomes an ammo guzzling single shot, and you get a bad back from picking up all of the perfectly good live rounds that you had to eject to chamber a new round.
 
More likely (by a factor of thousands) that you'll get hammer follow and then nothing. The gun essentially becomes an ammo guzzling single shot, and you get a bad back from picking up all of the perfectly good live rounds that you had to eject to chamber a new round.

Just sharing my experiences along with others I have read about. Your description is the most likely to happen though.
 
I assume if the kit came with the FA sear, it came with the FA trigger group and hammer aswell... All one would be missing is a FA BCG which one probably has, and some time on a mill. But that would not be nice and who knows how many children would be armed? Did you think about it? The children!

I'm going to go out on a limb and say that maybe two dozen of the tens of thousands of people on CGN have access to a mill. So your speculation isn't very helpful. The Criminal Code says firearms that can be converted easily are prohibited. Considering the numbers of boutique AR lowers on the market, the RCMP firearms lab has been doing a brisk business identifying the ones without the interference bulges. Or if a model they didn't check earlier, are asking owners for detailed interior photos. Don't give anyone more reasons to hate the AR15 than they already have.
 
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