Like the title says. These were factory take offs from my CMMG MK3 CBR. These parts had about 150 rounds through the gun before being taken off. They are in perfect condition. Would like to get $65 shipped USPS priority same day with tracking number. I accept paypal gift or +4% only. Everything you need besides stock to make your rifle into a carbine. To buy all these parts new would be over $80 plus shipping and possibly tax.