TacDoc
11-24-07, 04:39
I want a 9mm AR. For now I'm still researching/planning my setup.
I was looking at this RRA upper:
http://i3.tinypic.com/89v126s.jpg
http://i7.tinypic.com/6p6vh5j.gif
I do prefer a regular FSB in this upper, so here are my questions:
1. Is this Weaver Type Gas Block Sight Base is .750" in diameter?
2. How does this gas block attaches to the barrel? Just tension screws or the barrel is somehow modified?
My idea is to remove this gas block and install a BCM "F" FSB with 1/8" straight pins.
Any help will be appreciated.
I was looking at this RRA upper:
http://i3.tinypic.com/89v126s.jpg
http://i7.tinypic.com/6p6vh5j.gif
I do prefer a regular FSB in this upper, so here are my questions:
1. Is this Weaver Type Gas Block Sight Base is .750" in diameter?
2. How does this gas block attaches to the barrel? Just tension screws or the barrel is somehow modified?
My idea is to remove this gas block and install a BCM "F" FSB with 1/8" straight pins.
Any help will be appreciated.