WTT/WTS AR-15 Stripped Upper, Pmag kits, Piston System

[spyderwire]

I have an AR-15 Retrofit adjustable gas piston system for sale at Sold. Parts 2, 4, 5, & 6. The gas block and piston are Adam's Arms, and the block is made for a .750 in diameter barrel. The kit is set up for a rifle length system. None of these items have been on a working firearm. I bought them, and made my own parts that I modeled after these pieces, and put the pieces I made on my 300 (barrel and system in the white at the top of picture, not for sale). This will also come with Adam's Arms Installation DVD. The piston system includes the block, piston, and carrier along with the dvd.

All Items are traded, or sold.

Trades:
I'm looking for a small subcompact pistol...
I'm thinking a Walther PPS, or Sig P938, or I really want an XDS.
I'm also looking for a decent scope or holo/red dot sight.

[spyderwire]

Upper SPF

[spyderwire]

piston system traded