I have the original Colt AR 22lr conversion kit (1988). I am having difficulty locating the 10 round magazine for this kit. Any help would be appreciated.
You want us to come over to help you look for it or where to find a replacement?
You can try Colt to see if they still have any and look at CDNN as they have a 22 round mag that I believe will work. I have a Colt con. & a dedicated upper. The JP upper uses the big mags and I haven’t tried them with the Colt conv. unit but I think it will work. They are cheap at ~$9/ea. If I get a chance to try the big mags with the conv. unit, I’ll let you know the results.