This is an AR15 that I use as a dedicated rig for shooting Aguilla 60 grain SSS .22LR ammo. It is a DSA upper with a 1/9 twist barrel. It uses a Spikes tactical .22LR conversion kit and a CMMG chamber adapter. I removed the gas tube and rotated the handguard cap around to cover the gas port hole so it would be quieter when shot suppressed. I still have the gas tube, so it could easily be used as a 5.56mm AR as well. The lower it sits on is a RRA that came as a factory complete lower, but I had to install a DPMS hammer to function with the conversion kit. The picture shows an Ergo grip, but I am going to keep it so an A2 grip is what it will be sold with. The MI rear sling adapter is not included either. This sale includes 10 Black Dog Machine 26 round magazines. One is smoke colored and 9 are black. This sale will also include 400 rounds of Aguilla 60 grain SSS ammo that will be shipped separately from the rifle. The A2 flashhide and crushwasher that came with the upper are included. Also included is a Traction Grips spacer that threads onto the muzzle threads to provide the correct thread depth for a silencer. This has been a great rifle that has functioned well and been accurate, but I have come across a deal on a Volquartsen 10/22 that is too good to pass up, so I need the funds. Price is $750 shipped. I am willing to sell the upper only for $425 shipped. I will not sell anything else separately until the upper sells. I will only ship where legal. The only trade I am looking for is a FN FiveSeven handgun. Please add 3% for PayPal. E-mail is the best way to contact me. Thanks for looking!