If you have a dedicated .22LR AR-15 build, the new Compact Retractable Stock (CRS) from Nordic Components just might catch your eye. It is similar in design to the collapsible stocks that Heckler & Koch uses on many of their firearms. Nordic Components adapted the design to fit any AR-15 that does not require the use of the buffer tube, like those that have been converted to .22LR.
The stock is adjustable from a fully collapsed length of pull (LOP) of 5 7/8″ to six other positions varying from a LOP of 8-7/8″ to 13-7/8″. The stock weighs roughly the same weight as a standard M4 collapsible stock but it is significantly more compact. In its fully collapsed position it still allows for the bolt catch to function and will allow the dust cover to open far enough for the rifle to function.
This stock would be especially handy on a .22LR SBR build. .22LR uppers can be made with extremely short barrels without concern for gas system length. Those shorter barrels, coupled with a stock this compact, would make for a very trim, light weight, and handy firearm.
The new CRS is available now from the Nordic Components website.