Product Description LUTH-AR A2 Rear Sight Kit fits A2 Upper Receivers Black LUTH-AR A2 Rear Sight Kit fits A2 Upper Receivers Black at KYGUNCO Browse all KYGUNCO deals $66.54 In Stock at KYGUNCO Price verified 1d ago Buy Now at KYGUNCO Secure checkout Easy returns or compare prices Amazon eBay Product Details Brand Luth-Ar Luth-Ar