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AR15.COM
3/8/2011 2:22:55 PM EDT
I recently bought a LT-660 second hand that's got 2 large holes milled out in the mount (on the sides).  I've seen several this way and others where they are solid.  I pressume this was done for wieght savings?  What's the story on these and what's changed?


3/8/2011 3:47:57 PM EDT
[#1]
nevermind...  i guess the one with the slots milled in it is the 660hk...