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about each:
1. with a quad rail installed on the front hand-guard, is the height equal to the receiver rail? so one could install open sights?
2. is the 'buffer tube' the butt stock is on, aluminum or poly?
1. with a quad rail installed on the front hand-guard, is the height equal to the receiver rail? so one could install open sights?
2. is the 'buffer tube' the butt stock is on, aluminum or poly?
