I've taken to calling my PS90TR an USBR - Uber Short Barrel Rifle. At a tad over 20 inches with the Gemtech FS, this rifle is positively tiny. Here's a pic vs. my Colt M16A2 with an 11.5" RO933 upper and Gemtech FS. Keep in mind the Magpul CTR stock is collapsed; ready to fire, the M16 is even longer.

