Product Description 7.62 cal. 10", and has the #40A"A"A A A CEA rear flip up sight built in. ARMS 38 S-EX AR-10 SWAN Sleeve at BOTACH Browse all BOTACH deals $154.50 In Stock at BOTACH Price checked 9 days ago Buy Now at BOTACH Secure checkout Easy returns or compare prices Amazon eBay Product Details Brand Arms More Arms