Calibers: 22 LR, 22 WMR, 17 HMR. Capacity: 10-round Ruger BX-1 magazine standard, with optional Ruger BX-15 mag. Barrel: 16", 18", 20". Weight: 6.2 lbs. Stock: Folding buttstock with Magnelock technology. FFT carbon-fiber handguard with M-LOK attachment points. AR-compatible pistol grip. Sights: None. 0-MOA Pic rail standard with optional 20-MOA, 40-MOA, or 60-MOA. Features: New for 2024 rimfire version of the MPR with a lightweight billet aluminum chassis. TriggerTech Remington 700-style trigger. Six QD flushcup mounts. Adjustable comb height and LOP. Sub-MOA accuracy guarantee at 50 yards.