Grabbed a 4" 1911 that required the dreaded tool or clip for takedown. Grabbed one of these and got it installed. Works great and makes takedown a breeze. Supposedly the spring will last a whole bunch of rounds too. I'd recommend this for anyone that wants a simple fix for those bushingless takedown guns.
http://shopwilsoncombat.com/Flat-Wi...-45-ACP-Chrome-Silicon-22-Lb/productinfo/651/
http://shopwilsoncombat.com/Flat-Wi...-45-ACP-Chrome-Silicon-22-Lb/productinfo/651/