Thanks, however, if I am going the DD MK18 route I feel I will spend the extra $20.00 and assistance Intention (but additionally pay out OH tax).   I did Verify the G&R web page and made an effort to add the Colt uppers to the cart and have the from stock information.The Colt LE6943CQB and CR6943 Monolithic shorter barreled rifle feature's Colt's