The VLTOR SCAR Receiver Extension / Stock Adapter
Provides length-of-pull adjustment and is elevation adjustable for use with or without optics. Providing a more rigid stock solution with proven performance and compatibility with all standard M-4/AR-15 collapsible stocks, this non-folding replacement is light-weight and includes QD sling swivel sockets allowing for additional attach points. Available in black or Patriot Brown, fits both light and heavy models. Available for both semi auto and select-fire models.
Posted by Sierra November (military SCAR 17 user) on 6th Mar 2013
After receiving this part and trying several different types of magpul and Vltor stocks, I believe that this part should be mandatory for any SCAR user/ operator. It allows you to refine exactly what cheek weld you want, lenght of pull and everything else you can get with an M4. Anyone who is complaining about the moon boot stock that is standard can replace that one with this in under 5 minutes. Loosen it all the way, slide it on, adjust it to where you want it, tighten it and add your stock. Done. It is rock solid, will not move and you can adjust it to the millimeter of where you want your face in relation to your optic. Probably the best SCAR aftermarket product there is.