I sold the barrel out of my 18" Larue SSS so I had a free float tube and scope laying around. I got bored and decided to slap this thing together.
After shooting it, I'm probably going to end up leaving it pretty similar to the way it is.
Using CCI Green Tags I was able to put 25rds through a 1/2 hole at 15 yards with the gun braced against my thumb.
The build is as follows:
Spikes 16" uppper with standard CM barrel
Larue SPR mnt and 3.5-10MK4
RRA lower with Geissele DMR trigger
Even though this gun turned out a bit heavier than I originally planned on, it balances extremely well. To make it balance I had to run a buffer in the stock even though it's not required.
The upper is built extremely well. The only issue I had was with the factory charging handle, somehow the channel where the carrier rides was a bit tight and caused the gun to malfunction.
Ammo selection has not been an issue with the gun, it'll run everything and anything. The CCI standards and green tags have yeilded the best accuracy.
I will be purchasing a YHM Mite to go on this build in the near future. I like the idea of having a .22 can that can be cleaned easily.
The 1 MOA m3 knobs on the scope are well suited for this gun since I have to dial in a lot of elevation going from 25 yards to 100 yards.