The MMRB-556 rifle from Custombilt Firearms features a nitride-finish, 1:7 twist, 16-inch mid-length barrel that the company OEMs from Ballistic Advantage with a pinned F-type front sight block. Custombilt drills and pins its sight blocks in-house to ensure the most level and true front sight block possible. The MMRB-556 has an entry-level price point and is a great choice for patrol/defense duty. It also features a matched nitride-finish 9310 bolt and 8620 carrier and Magpul furniture, including an SL handguard. Finally, all MMRB series rifles ship with a Badger Ordnance Gen 2 charging handle latch. MSRP: $1,125. Contact: www.custombiltguns.com