FGC9 Upper Receiver Long Rail Upgrade

this one is made so it will work with the UNW top rail shrouds.

the: FGC9 Upper Receiver RAIL NLS LR XL plus buffer. is for in case you like to have a rail on the small piece of buffer tube mounding plate as well. so the difference is that this one is a bit longer.

there are 2 options. the G36c edition will stop at the barrel retainer. so you can use existing shrouds with a top rail like the UNW top rail series.

or when you want to upgrade upper and a non top rail UNW shroud is there a zip called UNW shroud. this one will have the parts needed for that.

more can be found here
https://www.thingiverse.com/untangle/collections/fgc-9-parts-mods