I apologize for the the delay with your order.
We just test fired a number of 18" barreled rifles going as far back as September. Being out of stock on 18" barrels for so long was completely unforeseen. But we are now caught back up and will be shipping them all this week.
If you would like to PM me your order number or contact info I can look you up in the system to confirm.
Thank you for your patience and understanding in this matter.
Thanks, Mike
DS Arms