Been wanting to buy a CMMG upper for about 8 months now. They are not available. At close to $600 each, I can't believe they aren't cranking them out. Probably a huge profit margin item for them. Have my suppressor at the FFL now. With eforms, I should be able to pick it up in 3-4 months. But I will not have a AR-22 to shoot with it.
Finally wore my Tac-sol upper out, 15,000+ rounds. (Bolt beat the end of the barrel to death) totally rebuilt the upper with CMMG parts. Runs great but accuracy is mediocre compared to my bolt actions.
I have two Tac-Sol uppers. One with the lightweight aluminum barrel with the steel (or sst) liner and one of the M4 profile steel barrels. I've never shot either of them for dead on accuracy but they do feed everything I've put in them. I disassembled the lightweight barrel once. The barrel has a sleeve over the breech end which accepts the TacSol bolt. It is removable and once removed the barrel doesn't look too different than a 10/22 barrel (w/o the notch of course). If you can get that sleeve off and get some dimensions, I bet a smith could spin a barrel from your blank of choice pretty easy. The sleeve is glued on; I assume with blue loctite and two set screws. I was able to remove it pretty easy.
that's a hell of a claim. Will look into the CL upper. Getting sick of waiting for CMMG. Rock river has a 8 month lead time for their uppers. Ridiculous.
No need to wait. It is very easy to build a dedicated 22LR AR upper. No special tools are really needed. You don't really have to torque the barrel nut down like you do on a AR15 or AR10. I have built 7 complete AR rifles. The 2 rimfires were extremely easy. With all of the videos on the internet, piece of cake, plus you get exactly what you want.
Charging handle, Boonie Packer mag conversion for your lower if you want to use 15/22 mags, and a CMMG dedicated breech collar for your bolt if it doesn't come with one. If you can't find a CMMG bolt with collar, you can still buy a conversion CMMG bolt, take the end that fits in the AR15 barrel chamber off, and replace it with the collar. More expensive this way but you end up with the same results. Be advised that CMMG has many dealers online so look around. I found my bolt at an online merchant called Right to Bear arms.
Charging handle, Boonie Packer mag conversion for your lower if you want to use 15/22 mags, and a CMMG dedicated breech collar for your bolt if it doesn't come with one. If you can't find a CMMG bolt with collar, you can still buy a conversion CMMG bolt, take the end that fits in the AR15 barrel chamber off, and replace it with the collar. More expensive this way but you end up with the same results. Be advised that CMMG has many dealers online so look around. I found my bolt at an online merchant called Right to Bear arms. This is a dedicated 22LR I built using Seekins Precission billet upper and lower receivers, Noveske NSR15 hand guard, Beyer 18" barrel, Hiperfire 24C trigger, CMMG bolt, and a Magpul PRS buttstock. The scope has been replaced with a Vortex Viper HST 6-24x50. I probably could have bought a Vudoo for what this build cost.
How dependable is that unit?? I am flirting with selling something and getting one. But I want it to be as reliable as what I have been running and excellent accuracy.
I have one and its not worth it. My DPMS upper shoots as good maybe better. I was bummed. Maybe the JP does 3/4 at 50 yards with Eley Tenex and Black. I dropped big money spared no expense.
It works really good with the CMMG bolt and the SW mags both 10 and 25 rnd. As far as the bolt hold open feature, I would say it is pretty reliable. Not guaranteeing 100% but is anything really 100%?
I had a Compass Lake upper years ago. It shot great, very accurate, but it used the old magazines that you insert into AR mags. I had regular feeding problems with them, could never seem to get them right. Not sure if they are using that same system now or not. I now have a JP 22 upper that also shoots great and uses Black Dog magazines and have not had any feed problems.
Thanks. Checked with borebuddy, they said there could still be some damage to the lower even with the plug.
No, it needs to be more than hand tight. I just didn't use a torque wrench. My hand guard came with barrel nut wrench that fit a 1/2" torque wrench. I just cranked it down with a breaker bar. Tighten it good. I don't have a bore buddy on mine, but after a few thousand rounds all I am seeing on the Bach of my lower is what looks like some scraping. I really don't think a 22LR would cause that much impact but all I shoot is SV match ammo. Mostly RWS Target Rifle. The CMMG has different springs available to soften or stiffen the recoil. I use a little stiffer one. I think it is the middle one. Kind of like Kidd does.
Bonnie packer BHO has worked at least 99% for me not sure it ever failed to BHO. Don’t think of it, so it must work.
That was the biggest change to the reliability. I used 2 part epoxy ‘metal filler’ to fill the right parts of the CH groove. Stops 22lr cases from getting stuck up there.
borebuddy.com
Close to that...not the front piece on that...just the rails and boltThanks. So this?
got it. thanks.AR-22 Barrels – Keystone Accuracy
keystoneaccuracy.com
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