Selling Del-Ton AR-15 .556 Less than 100 rds through it near Boston, Massachusetts, USA

Been trying to get this off for a while now, I'm open to trades and BO's. Comes with a Sig Sauer red dot sight and 1 10rd mag. 

Really in the market for a semi auto shotgun or a real nice .45 specifically a mossberg aftershock 990 or an HK45c

Text me at REDACTED if interested.