title states. Bought it for my SBR build but doesn't work with my billet upper. It's only been opened and dry fitted no tools ever on it. Bought for 350, looking for 310(shipped).

http://www.midwayusa.com/product/412...aluminum-black



PayPal gift, MO
Thanks for looking!


Sent from my IPhone, please ignore spelling mistakes. Siri is dumb.