Best price I have found. $799.99 plus $19.74 shipping. No tax. Plus dealer transfer, $25. Total $844.73.
Comes with extra grip and quadrail.
https://www.cdnnsports.com/colt-le6920-556-m4-carbine-with-quad-rail-and-grip.html#.WjrLzlVKskL
$709 and shipping for an OEM1 add furniture
https://www.gunbroker.com/item/731020063
OEM 2 $699 w free shipping https://www.sportsmansoutdoorsuperstore.com/products2.cfm/ID/121650