To celebrate the 1911's 100th anniversary, Remington brought back the 1911 line as the 1911 R1 in 2011. The R1 incorporates elements from both the 1911 and the 1911-A1, as well as a few additional elements from modern firearms. The R1 employs a series 80 receiver, so it features the split firing pin safety, unlike the original 1911 or the A1. To make changing or adjusting the front sight easier, R1 also incorporates a front dovetail rather than a pinned front sight. Remington also altered the ejection port by lowering it and flaring it to enable easier ejection of empty shells. A small cut was added to the barrel at the back of the chamber area to serve as a loaded chamber indication. Additionally, Remington upgraded the R1 with a stainless barrel and bushing. The flat mainspring housing and the double diamond walnut grips are the only two features that make R1 similar to the original 1911. This pistol has a shortened A1-style trigger and an expanded grip safety to minimize the risk of hammer bite. Without a doubt, R1 is the most precise 1911 model ever seen.