I have a bushmaster post-ban carbine with a3 upper and fixed stock. I would like to install a VLTOR carbine modstock. I have heard that I must replace the buffer tube to milspec. Would the following parts allow me to successfully do this setup?
-ACM-2S Standard kit.
-COLLAPSIBLE STOCK KIT
INCLUDES BUFFER, SPRING, RECEIVER END PLATE, NUT
-VLTOR 5 POSITION EXTENSION TUBE
It seems to me that these are all I need. If you have any input, please let me know.
All you need is an ACK-2. It comes with everything. Stock, extension, buffer, spring, and hardware.