Interchangeable uppers

[vega]

Are 22 dedicated uppers interchangeable with 223 uppers?

[slik556]

Yes if you are talking about a standard AR lower, the uppers can be switched out.

[vega]

No lowers involved.

I have a TacSol upper coming in and I want to swap the upper receivers of my .22LR TacSol and .223 Bushmaster. Is it possible? I haven't seen the internal of a TacSol yet.

One may ask why, because my Bushmaster have an A2 upper and I want it to have the A3 receiver.

[Purple K]

The S&W .22 upper is the only one that won't fit a standard lower.

[jpopfan]

The receiver is a standard part, no problem there. But since the 22LR barrel is recessed into the upper by about 1.5", there is no barrel extension installed. So you'd need to also swap the barrel extension (the ring with the grooves that the bolt slides into). Even then, I'm not sure if the upper has the M4 feed ramp cuts or not, if that matters. Try it out and let us know!

[afro]

EDIT: I should have read. I'd think you'd be able to switch out all the TacSol upper internals in to a Bushmaster stripped upper... why not find out? Would be neat to have a Bushmaster marked dedicated .22lr upper.

[vega]

The S&W .22 upper is the only one that won't fit a standard lower.

You're making a statement right? Or you have reading comprehension problem.

ETA - NO LOWERS involved....UPPERS only.

[tacticalcity]

Vega, actually the way you phrased your question is the problem. So getting snippy with people doing their best to answer you is not a very good idea. They mean well and wish to help you.

You were not clear at all. I was under the same impression as they were based on your question. I thought you wanted to know whether or not you could swap out uppers on your lower. Which is most cases the answer is yes you can.

If you are asking if all 22lr upper parts are compatible with other brand uppers, I would say there is no way to really know 100% for sure. Most of the time the answer is probably yes, but there is lot more margin for error in a non-standard caliber upper such a the 22lr. The 5.56mm uppers are for the most part milspec. There is a standardized set of rules and specs to them and any company that strays from those specs catches a lot of heat and gets reduced business because people have certain expectations with regards to compatability of parts. I am not sure that holds true with 22lr uppers. Companies conviencably have more room to come up with proprietary designs and come up with their own unique designs with their own unique specs. There is no universal set of standards they must follow or be chastized by the consumers.

I could be wrong, but I would be a lot more wiery than I would be with 5.65mm AR parts and uppers. The more parts you cannablize from one and move into the other the more risk of trouble. I would recommend keeping all the parts from the same manufacturer and stick to parts for the same caliber just to be on the safe side. I might be over thinking it though. I fully admit I could be wrong. I'm a better safe than sorry guy. I tend to buy my uppers pre-assembled and buy from higher-end brand names. Then again, I don't have to pay retail either so that opens up lots of options for me.

[vega]

I guess we will know when I get my TacSol upper.

Thanks for the replies.

[CHS]

I have a TacSol upper coming in and I want to swap the upper receivers of my .22LR TacSol and .223 Bushmaster. Is it possible? I haven't seen the internal of a TacSol yet.

One may ask why, because my Bushmaster have an A2 upper and I want it to have the A3 receiver.

Yes. You can swap just the uppers. The TacSol uses a standard M4 upper receiver made by CMMG.

[vega]

Yes. You can swap just the uppers. The TacSol uses a standard M4 upper receiver made by CMMG.

Thanks a bunch!!!!!!!!!!!!!

[redcliff]

Will an "m4" upper which I presume has m4 feeding grooves work with a non M4 barrel? I certainly could be mistaken but I thought that was a problem, versus using an m4 cut barrel in a standard receiver.

Also depending upon which FSB goes with which barrel you may need a taller front sight pin. Flat tops and uppers use different height FSB's if I recall.

[CHS]

Will an "m4" upper which I presume has m4 feeding grooves work with a non M4 barrel? I certainly could be mistaken but I thought that was a problem, versus using an m4 cut barrel in a standard receiver.

The TacSol receivers don't actually have the M4 feedramp cuts. But they have the hole drilled for the gas tube. So they will work just fine with a barrel extension that doesn't have feedramps.

Also depending upon which FSB goes with which barrel you may need a taller front sight pin. Flat tops and uppers use different height FSB's if I recall.

Bushmaster sells a taller front sight post that you can easily replace to get around this issue.

And if you're using optics, then it doesn't matter

[vega]

My Bushmaster upper does not have an M4 feed ramp which is perfect for swapping with the TacSol upper.

TacSol came in today and I didn't realize they have their logo embossed in the upper. Now I'm having second thoughts.

[CHS]

TacSol came in today and I didn't realize they have their logo embossed in the upper. Now I'm having second thoughts.

I don't get it.

What does that have to do with anything?