We are proud to introduce our newest product...an HK style quick opening adjustable length of pull side folding stock for the GSG-5 .22 cal rifle!!! The folding mechanism is made of 4140 tool steel and has a metal arm, so the weak point in many other side folders is eliminated. It also incorporates our spacer system, allowing for the length of pull to be adjusted to fit the shooter. We are the original designer and producer of this style stock. The stock is designed so it can be fired from the closed position. The bottom picture also shows the original stock for comparison, our end cap for GSG-5 pistols, and the mounted side folder. Both the side folding stock and the end cap offer a sling loop attachment and both the side folding stock and the end cap use the original screw to attach it to the receiver. Our products are used world wide by Police, Military, and Civillians alike. We have a forever warranty, but we engineer our products and manufacture them to last forever so you don't need to use it!! Price for the GSG-5 side folding stock is $160.00+ shipping and end caps are $26.00 +shipping (+AR Sales Tax if applicable) Call us at 800-972-6390 or visit us at www.riflestock.com These side folding stocks are for use with GSG-5 rifles. Pistols cannot have a side folding stock attached unless they have been appropriately made into a legal SBR (short barrelled rifle) and a tax stamp paid for and approved by the BATFE).