This Rattler has all the options and upgrades included. It started life as a 5.56 and was switched over to 300 blackout before being fired. The 5.56 barrel and handguard are included. There are two 300 blackout handguards, one short and one for suppressor use (shown). The kit includes three braces, the original folding option, a collapsible brace (shown) and a AK style folding brace. The lower has been upgraded with a Radian safety, a more traditional pistol grip and a Geissele MCX trigger. The upper includes a Radian charging handle as well as the original. Total round count is about 80 on the 300 blackout and zero on the 5.56. The whole kit minus optic is $2700 with the Eotech available for $300. Open for trades up to 1k with the balance in cash.