Patented Power Bedding™ integral bedding block system positively locates the receiver and free-floats the barrel for outstanding accuracy. 17 HMR use the detachable, flush-mounted JMX-1, 9-round rotary magazine and accepts the BX-15 ® Magnum magazine.Įasy-to-use, extended magazine release provides smooth, no-fuss removal of the flush-mounted magazine. 22 LR include the patented, detachable, flush-mounted BX-1, 10-round rotary magazine and accept all 10/22 ® magazines, including the BX-25 ®, BX-25 ®x2 and BX-15 ®. All four stock modules are completely interchangeable across all models and are available at. By simply removing the rear sling swivel stud, stock modules can be changed in seconds. Models configured with a synthetic stock include two interchangeable stock modules that provide comb height options for scope or iron sight use.