so as some of you know, i am putting together my first AR (right now by the way, it has been pretty quick and painless). i got to the very end and i put the CTR stock on and it is very rough, rough as in it doesnt slide very well. are they all kind of "sticky" or do i need to oil it or will it get smoother with time? the buffer tube is mil-spec and i assume the stock is also considering it came in the same kit....right? this is the kit i used http://palmettostatearmory.com/index.php/ar-15-05/lower-parts/build-kits/moe-lower-build-kit.html edit* im an idiot. i have the MOE Carbine stock....but still the same problem. Sam Wanna kill these ads? We can help!