Originally Posted by Mark_S
Just purchased BTE hand-guard 15", how do you index (12 o'clock) vent holes to properly attach sights (proper alignment)? This BTE handguard tube looks perfect but I want to install properly. Hope you can advise as your AR looks like you have everything lined up proper.
Clamp a scope or other quick connect base across the reciever and handguard top rail and then tighten down the machine screws. Quicker to do than to type out. Scope base keeps alignment while holding screws or collar are tightened to hold the handguard. Hope this helps.
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Last edited by dwmiller; 12-30-2013 at 11:25 PM.