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9/19/2017 7:27:10 PM
Posted: 1/16/2006 3:50:55 PM EDT
what is the push pin at the top of the rail near the front sight base for?
Link Posted: 1/16/2006 4:17:51 PM EDT
If you have a bi-level SIR, you use the pin to secure a top rail to make a long continuous rail from charging handle to front sight. If you have a #45 or #46, you can push the pin out, flip over the top rail for a low PEQ-2 mounting, then push the pin back in.
Link Posted: 1/16/2006 5:28:41 PM EDT
Here's a couple of pics of mine with the optional rail mounted using the pin.

Pic 1
Pic 2
Link Posted: 1/17/2006 4:53:58 AM EDT
what the others said.
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