Ares Defense MCR Belt-Fed Upper at Brownells


Brownells New Product Review


Grinnell, Iowa – ( – Learn about the hottest new Brownells products from the best brands at the New Product Center. Hosted by Merchandise Manager Paul Levy, the videos review what’s new, and remain at the New Product Center page for several weeks. Then the videos are archived on the Brownells YouTube channel, and are accessible at any time.

Products featured in this week’s video include:

  1. Ares Defense MCR Belt-Fed Upper. Complete 5.56 uppers drop onto standard AR-15 lowers and give belt-fed capability for sustained fire. Upper comes with 100 links, new buffer spring and bolt catch and full instructions. Upper retains ability to feed from standard AR-15 magazines. Quick-change barrel feature allows user to quickly change barrels to prevent burnout. Available in both semi-auto only and full-auto-compatible versions. Full-auto version comes with sights installed. Semi-auto only available with either Picatinny or KeyMod handguards for accessory attachment.
  1. Ares Defense MCR 100-round Pouch (#100-019-951). Soft, nylon pouch holds 100-rounds of linked 5.56 ammo and quickly attaches to SAW-style mounting points to neatly hold ammo for belt-fed upper. Side zipper gives easy access for loading and cleaning. Available in ACU camo pattern. $79.95 retail.
  2. Ares Defense MCR Magazine Adapter, #100-019-950. Aluminum adapter fits into standard AR-15 magazine wells, and provides attachment point for MCR 100-round pouch, or other M249-style pouches for linked ammo. Beefy construction and hardcoat anodizing stand up to hard use. Inserts and removes exactly like a standard magazine. $125.00 retail.
  3. Ares Defense MCR Barrel Assemblies. Heavy-contour barrel assemblies have adjustable gas system, and are designed to quickly swap out of MCR Belt-Fed Uppers to prevent over-heating. Barrels have 5.56 chambers, and chrome-lined bores with 1-7″ twist rifling. They come with standard A2 flash hiders, and are available in two lengths. Barrels fit Ares Defense MCR Uppers only.
  • MCR Heavy Barrel Assembly, 16.25″, #100-019-948. $570.00 retail.
  • MCR Heavy Barrel Assembly, 12.5″, #100-019-949. $570.00 retail.

About Brownells

Serious About Firearms Since 1939™, Brownells is the world’s leading source for gun parts and accessories, ammunition, gunsmithing tools and survival gear. With a large selection of both common and hard-to-find items, and an extensive collection of videos, articles, and gun schematics, Brownells is the expert for everything shooting-related. Committed to maintaining our great traditions, Brownells has more, does more and knows more – and guarantees it all, Forever. For more information or to place an order, call 800-741-0015 or visit Stay up-to-date with Brownells on YouTube,Facebook, Twitter and Instagram.