I'm going to install a MagPul PRS on my SPR rifle. However, I'm not sure what parts I need. Can I use the castle nut that's on my curent stock (MagPul CTR)? I know I need to use an A2 Buffer Tube assembly, but is that all I need? Are there any parts aside from the A2 buffer tube that are specific to this instalation?
Thanks,
Thanks,