I had this listed previously without the parts being installed. I decided to go ahead and do the installation work, upgrade the parts and have the super safety installed. It runs nice and fast now with reliable cyclic speed. Message me for the  video of this firing with the super safety engaged. I can send more pics too.


Its a SiG Sauer Complete M400 FDE, factory 11.5 inch barrel, it came from the factory as an M400 with  factory gen 1 sig brace and buffer. 


The pistol has been upgraded now. I bought this new a couple of years back. I never fired the pistol until just recently to test out the super safety system.


Its had 100 rounds thru it for testing only. I have a video I can send you if you want to see how fast the gun fires.


It has an Atrius super selector installed, an H3 Buffer, new buffer spring, new buffer tube, full auto bolt carrier group installed, and a 4 position SB tactical Brace. 


The trigger is factory Sig MILSPEC, it has an A2 front sight, Magpul rear sight. I am happy to include the original bolt carrier group and the original buffer tube that is marked Sig Sauer as well as the original one position brace that is also marked Sig sauer.


So essentially this has a three position safety. Position 1 is safe, position 2 is semi-auto, position 3 is about 700 rounds a minute of fun. If you are not familiar with how a super safety or an frt works I'm happy to answer any questions.


The pistol Works quite well, it has an 11.5 inch barrel, and other than 100 rounds I put through it the gun has never been fired. It is in beautiful condition not a mark on it the gun is pristine.


A lot of challenges people have when installing a super safety or an frt is both fitting the safety to the receiver as well as tuning the gun. This one has already been tuned and the safety is fitted. I run the same setup on three other AR-15s that I have. It's very simple to operate and easy to take apart.


You can easily convert it back to standard semi-automatic mode by dropping in the factory standard AR-15 safety, and you can put the standard semi-auto bolt carrier group back in it and restore it to full Factory original condition.


I've been working with M16s and AR-15s for over 25 years I carried them in service utilize them extensively and can tell you this is a beautifully designed pistol, and will go thru 556 ammo quicker than crap thru a goose.


it's got Sig reliability and the three position super selector makes this thing a whole lot of fun. I can't ship it out if state, must be local AZ buyer.


Comes with original parts, 3 -fde 30 round magazines, and s soft case. Dont have the original box anymore sorry.


I might consider some trades but please reach out and text me with any offers. I can be very flexible on the cash price so MAKE YOUR BEST OFFERS, worst i can do is say no.


Keep in mind if you had to hire a gunsmith to install this in your rifle you're going to spend between $400-600 depending on where you go around town.


This thing is ready to go. Like I said text me and I'm happy to send you the 12 second video firing a few bursts through it.


I can also provide you any other photos or answer any other questions.REDACTED TEXT ME DIRECTLY PLEASE.