ArmaLite is set to announce a new bolt action rifle similar to the company’s AR-30A1. The ArmaLite AR-31 is a short action rifle that will be initially offered in .308 Winchester. Depending on popularity, other calibers are a possibility.
A nice feature of the AR-31 is designed to accept AR-10B magazines, meaning that a wide variety of existing mags, from five to 25 rounds, are immediately ready to go with this rifle. I do not believe the Magpul Pmags will fit the AR-10B, but if someone could confirm or correct this information in the comments, I would appreciate it.