You are Unregistered, please register to use all of the features of!    
Firearm & Gun Forum - > Long Guns > Auto & Semi-Auto Discussion > AR-15 Discussion >

Converting up from 22lr?

LinkBack Thread Tools Display Modes
Old 10-01-2012, 04:41 PM   #11
Feedback Score: 0 reviews
JTJ's Avatar
Join Date: Oct 2010
Location: Lake Havasu,Arizona
Posts: 9,423
Liked 5236 Times on 2817 Posts
Likes Given: 1726


The M&P 15-22 was designed and built to be a 22lr. You can not change it. There are several calibers available in the AR 15 rifle platform. they go from .223 to .458 and possibly larger. It sounds like you might be interested in the 6.8 or 7.62 (300 Blackout) caliber size. In any case you will need a whole new platform.
Patron Member NRA
"I would not be an old man if I had not been an armed young man." JTJ
I was taught to respect my elders but they are getting harder to find.
JTJ is offline  
Reply With Quote
Old 10-01-2012, 09:26 PM   #12
Feedback Score: 0 reviews
Join Date: Sep 2012
Posts: 96
Liked 11 Times on 9 Posts


Someone suggested the 6.5 Grendel. Any thoughts? Also any thoughts on a kit or complete upper and lowers?
WannaBeVagabomd is offline  
Reply With Quote
Old 10-05-2012, 12:40 PM   #13
Feedback Score: 0 reviews
fsted2a's Avatar
Join Date: Apr 2008
Posts: 1,639
Liked 393 Times on 308 Posts
Likes Given: 651


Originally Posted by WannaBeVagabomd View Post
I guess my my little day dream will take a bit longer. My bad, it was an aluminum receiver. What parts are useable would you say?
The buttstock, and most of the FCG. Maybe the handguards. I think you should leave everything else with the .22LR. Seriously, you should get a separate AR if you want to shoot rifle rounds. Every .22LR AR I have seen is built exclusively for .22LR, however, you may be able to use the .22LR upper on an AR built for .223, if the mag will work.
"Democracy is two wolves and one sheep voting on what to have for dinner.
Liberty is the well-armed lamb contesting the vote." - Benjamin Franklin
fsted2a is offline  
Reply With Quote

Thread Tools
Display Modes

Similar Threads
Thread Thread Starter Firearms Forum Replies Last Post
Converting pistol to SBR Tenderribbs AR-15 Discussion 4 07-02-2012 04:14 PM
converting a 47 mag to 74? squirrelblaster AK & SKS Discussion 6 12-16-2011 09:27 PM
Converting my Mossberg 500 Rick1967 General Shotgun Discussion 12 03-26-2011 11:54 PM
converting glock 17 stone2 Glock Forum 4 11-04-2010 02:01 AM
Converting a .40 S&W Glock to use 9mm (ie. G24) dosdelon Glock Forum 5 07-18-2008 08:44 PM