JSchell1308

I'm a big fan of clones and the history some modern rifles carry. I am a huge fan of the Mk11 Mod0 being one of the last rifles Eugene Stoner helped design. Finding a great deal on the authentic rail and irons was enough for me to want to base the build around them and try to do them justice without spending the huge amount of money for the Knights SR25 base rifle. Not really trying to be a poser. I would never try to pass it off as the real thing. Only person that would give a crap is me. Was really looking for any info on Genesis since they are a site sponsor. Didn't know if many people bought from them around here.

Problem with Armalite uppers is they have a different barrel nut thread pitch than the Knights Armament rail I have. Has to be an Armalite A style upper to ensure the KAC mags work as well. I did find that in my search as well. They only guarantee it will work with their lower. I could give them a call and see if they think it would match with an Armalite AR-10A lower. Still has the forward assist I am looking to eliminate. The end game is to get a clone of the below gun, a Mk11 Mod0 without breaking the bank ($4k for a base KAC SR25 or $12k for a real Mk11). The KAC upper is more of a hexagon shape that matches the receiver extension portion of the lower, doesn't have a forward assist, and barrel nut is threaded for SR25/DPMS barrel nuts. I know I am getting damn picky it's just mine is so damn close and the Genesis upper is perfect to complete it. I was more or less seeing if anyone had any experience with Genesis CNC and what their wait times are. No real alternatives fit the bill.

Good reason to build a 6.5 Creedmoor upper right?

Damn the logic is sound. You are 100% right that if I have that upper laying around after everything it would start another build.

Nice find, thanks for that. I'm on the fence, I'm really wanting to get this rifle up and shooting but don't want to put it all together just to do it over again when the Genesis upper ships. Going for that KAC clone style look so the MEGA will stick out like a sore thumb.

Nice find and thanks for the link. I knew MEGA were close but never found proof they would work. found an upper for $285. I may do this just to get the rifle up and running then swap them out if and when Genesis ever ships.

Thank you for this. I doubt then that the matrix upper will mate with my AR-10A lower. Back to square one and the indefinite and silent wait for Genesis to ship off backorder.

DPMS/SR-25 uppers have a 1 7/16"-16 pitch thread so require a nut with the same thread. Armalite/Noveske uppers have a 1 7/16"-18 pitch. That is what has come up when I research the difference between KAC and Armalite thread pitch. That's even from this forum too.

Thank you for the response. The matrix aerospace uppers did come up in my research I just only ever found them as a set and never just the upper. I will have to give Chris a call and try my luck there. I think my only problem with the that upper was it had a forward assist and I was wanting one without. At this point I don't mind having one just to get it shooting while I wait for the Genesis upper to ship.

Hello all, I figured I would start with what I am currently working on as my first 308 based AR build. I found myself a great deal on a Knights Armament Mk11 rail and iron sight set. I wanted to try to put together a good looking clone/inspired by build using these parts but did not want to break the bank by starting with a $4k SR25 rifle. I started to piece everything together and am extremely happy with where I am at. However I need one last vital part: a stripped upper receiver that has a the Armalite/KAC/LMT/LaRue angled cut on the rear but has the KAC/DPMS barrel nut threads to work with the KAC handguard. This brings me to the Genesis CNC stripped upper. It fits the bill perfectly and I ordered one as soon as I found it. That was nearly 2 months ago now. I ordered it fully knowing they were "backordered" but just didn't know how backordered they were. Genesis initially answered a few quick emails with questions before I ordered however they have been radio silent since then. No social media responses, no email responses, no phone responses, no call backs on a voicemail. I'm not bugging them every day, I just send out a message once every week or two to see if they respond. Nothing so far. This lead me to this forum, it looks like a great resource for everything 308 AR related and I see Genesis CNC is a site sponsor. My question to you all is anyone that has one of these uppers, how do you like it? What lower are you using it with? Everything fit up nicely and work correctly? Anybody order one before on backorder and how long did it take to ship? I will be using it with an Armalite AR-10A style lower that accepts Knights SR25 mags. Side note: If anyone is selling a stripped upper that will work for what I need I am interested, especially a stripped Genesis CNC upper. A couple photos of where the build currently is.