MNine
Member
I have what I believe to be a defective M4 CAR stock. When I thread it into my lower and it is adequately positioned to hold the retaining pin and spring for the buffer it protrudes very slightly into the lower, such that I cannot pin the upper in. The upper fits fine with the stock off and I put another M4 stock on that fits fine so I know it is an issue with the tube threads. Will my best bet will be to replace the tube? How do I go about pulling the stock off and putting a new tube in? Do I loosen the screw at the bottom somehow on the catch for the stock?
Thanks!
Thanks!