The 722 bolt-action 22LR features a 7-round detachable magazine and a 50 degree, cock on open, bolt design. The 722 PT model has an adjustable length of pull, thanks to the use of A-B Arms' Mod X Urban Sniper stock with a 6061 T6 aluminum chassis. It is optic ready with a 5.68" Picatinny rail. 722 PT rifles offer guaranteed MOA accuracy. NOTE: PT models have a target chamber; do not use Stinger ammo. This model has a 20" bull barrel with 1/2x28 threads and a blued finish.