Black Rain Ordnance has made a promise to make your firearm exactly that YOUR firearm. With the Spec+ Series you have over 100 Different build configurations and 24 different finish options to choose from. If you are looking to add something special to your arsenal without breaking the bank the Black Rain Ordnance Spec+ Series has proven to be a great choice.**MODIFICATION MAY BE REQUIRED TO USE MAGPUL MBUS PRO OFFSET FRONT SIGHT****DISCLAIMER - ALL SPEC+ SERIES RIFLES ARE CURRENTLY ASSEMBLED WITH A CASTLE FLASH SUPPRESSOR & NOT AN A2 FLASH HIDER AS SHOWN IN THE PRODUCT PHOTOS ***