CMMG perfects the drop in AR .22 conversion.

[Jer]

The M&P15-22 goes for $450 and I've seen them sell used for under $400 so they're quite affordable and it's nice to have an entirely separate weapon that was designed for the ammo it shoots. My wife or a buddy can shoot it while I shoot another AR15 so it's nice to have two separate rifles. Not to mention with the M&P15-22 you can put all the same furniture on it so it looks/feels just like your .223 AR15.

You say proprietary mags yet you HAVE to buy proprietary mags to shoot .22 in a regular AR15 anyway so I don't see how this is even a factor. Not like you can go out and buy pmags to run .22LR through your AR15 so that's a wash.

The M&P22-15 is just like a standard AR15 in just about every way save for the ammo it shoots. You can get them with a standard A2 flash hider, the bolt catch is in the same place and all the functions are the same. Bolt hold open, bolt release, mag changes, upper take-down w/retained springs and internals so no parts to go flying like some of the others... it's all the same. Not like some of the other .22's this one is the same all around and even shares most of the same external parts save for the mags. For me, I would rather spend a couple hundred more and have an entirely separate rifle that acts & feels the same way then have a few replacement parts for an existing rifle so no matter what... I have only one rifle. For not too much more you can have two.

I'm just saying, it's an option.

[mutt]

You say proprietary mags yet you HAVE to buy proprietary mags to shoot .22 in a regular AR15 anyway so I don't see how this is even a factor. Not like you can go out and buy pmags to run .22LR through your AR15 so that's a wash.

Blackdog/cmmg/cienner style mags are pretty much the defacto mag for .22 AR conversions. That mag will work with all the major conversion bolts, all the major dedicated uppers, the sig 522 and whomever else decides to use them. To use a computer term, they're an open standard. M&P15 mags only work with the that rifle, hence my use of proprietary. I have a dedicated .22 upper, a conversion bolt and plan to get a sig522. Being able to use one mag format is huge for me. But that's me. Most people could probably care less.

M&P15's are slick rifles, nothing wrong with them. I just have different wants.

[Jer]

Blackdog/cmmg/cienner style mags are pretty much the defacto mag for .22 AR conversions. That mag will work with all the major conversion bolts, all the major dedicated uppers, the sig 522 and whomever else decides to use them. To use a computer term, they're an open standard. M&P15 mags only work with the that rifle, hence my use of proprietary. I have a dedicated .22 upper, a conversion bolt and plan to get a sig522. Being able to use one mag format is huge for me. But that's me. Most people could probably care less.

We're in agreement though that no matter if you use a conversion or a dedicated 22 rifle you are going to be buying a more rare mag that is proprietary to that rifle as in you can't swap it between your other AR15's which is where the price savings and selection comes from. That's the point I was making. I got a few mags for my M&P15-22 for cheap and that's all I need. They work well and I didn't find myself saying 'Damn I wish Magpul made mags for this' because it wasn't necessary.

M&P15's are slick rifles, nothing wrong with them. I just have different wants.

I can respect that and that's all I was trying to do was open a dialog to find out why some chose what they chose. I wasn't condescending or negative with my post asking why not a dedicated rifle... just curious.