ANyone ever build a dedicated .22LR upper?  I am considering building one but was wondering if it is as simple as getting a modified .22 Ciener/Army kit and getting a .22 chambered barrel and new extension.  Any hints/experiences?

Renny

It's been done....

[url]http://www.roderuscustom.tzo.com/cgi-bin/ib3/ikonboard.cgi?s=3f0d1de60674ffff;act=ST;f=3;t=285;hl=wsmac[/url]

Working on mine.

Too simple--- get a Ceiner kit, and a Kuehl or Accuracy Speaks barrel, and your done.... These barrels do not use an "extension" they are cut from blank material. The pic is some of Ricks' offerings:
[url]www.kuehlprecisionfirearms.com[/url]

[img]http://www.kuehlprecisionfirearms.com/22_lr_NFA_bbls.JPG[/img]

built one using the army m-261 kit. Took a shotout match barrel, removed the extension, made a new one out of 1.25 drill rod. Drilled out the barrel, put in a .22 rimfire liner, chambered it for .22 lr. modified m-261 kit to feed directly into chamber. mags are only 10 rounds, but they fit into a 20 or 30 round GI mag. they are availible through SARCO, at @ $15 a piece. Have about 1500 rounds through it. Had some initial problems, that took 30 or so rounds to fix, after that runs good..It's configured just like my service rifle upper.. I have about $500 tied up in it.
 dan

Derrick Martin of Accuracy Speaks has made these in the past using the Ceiner kit they work very well and you can get the 30round mags for them.
Accuracy Speaks web site [url]www.accuracyspeaks.com[/url]or email [email][email protected][/email]