AR Sponsor
Posted: 8/17/2005 10:34:42 AM EDT
|
Got my Matech BUIS in the other day and I love it. Even though i have no upper to stick it on yet... After looking at it I have a question, for those that may have one anyways. What in the heck is the hole to the lower right of the screw hole for? Forgive me if its flamingly obvious, but I can't figure it out. |
AR Sponsor
The instruction sheet that comes with it does not even say what it is for.... Strange...