Ready to buy Ar 15 Upper Receiver Block? Look no further than Brownells.com for the best prices and selection. Our selection of 17 Ar 15 Upper Receiver Block and Ar 15 Upper Receiver Block & Accessories represents the best of the best, on sale at prices from $30.00 to $169.95. As the number one online retailer of gun parts and gunsmith tools we are able to provide excellent customer service, great prices, and top quality merchandise, every day. We stand behind every item we sell, because we work with guns, too. We're happy to offer a 100% satisfaction guarantee - if you're not completely satisfied with your purchase, we'll make it right. Our entire inventory of Ar 15 Upper Receiver Block is online, so it's easy to find what you need. When you're ready to order, use our simple cart or call us toll-free at 1-800-741-0015. As always, we're here to help meet all of your needs for gun parts and gunsmith tools, so if you don't find what you're looking for online, drop us a line and let us know.