.22lr upper HELP

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ddlstang

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I just got a CMMG 22lr conversion for my AR's. Runs great, probably put 200 rd's through last weekend without a single hickup. The instructions say to shoot some 223 through afterwards which will clean out any buildup in the tube. Hav'nt had it long enough and fired enough rd's through to give a long term report but very happy with it now. It transitioned from 22lr to 5.56 in 5 seconds without a hitch. The sights were eve really close at 25yds.
 

Jedabug92

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I just got a CMMG 22lr conversion for my AR's. Runs great, probably put 200 rd's through last weekend without a single hickup. The instructions say to shoot some 223 through afterwards which will clean out any buildup in the tube. Hav'nt had it long enough and fired enough rd's through to give a long term report but very happy with it now. It transitioned from 22lr to 5.56 in 5 seconds without a hitch. The sights were eve really close at 25yds.

the dedicated upper or bolt swap?
 

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