The Just Right Carbines Rail 9mm Carbine is a semi-automatic pistol-caliber carbine built on straight blowback operation for simple, reliable function. The receiver, trigger housing, and magazine well are machined from aerospace grade 6061-T6 aluminum with black hardcoat anodizing, and the carbine uses standard M-4/AR-15 furniture and trigger components for easy accessorizing. Ambidextrous bolt configuration and a repositionable charging handle allow the carbine to be set up for left- or right-hand ejection. 9mm with 17-round capacity 17" lightweight threaded barrel Free-floating M-LOK 13" rail Picatinny rail machined into top of receiver Ambidextrous bolt configurable for left- or right-hand ejection Bolt/charging handle can be moved to left or right side Converts to other pistol calibers with separately available conversion kit Uses Glock/Glock-compatible magazines Telescoping 6-position collapsible M-4 style buttstock Receiver, trigger housing, and magazine well machined from 6061-T6 aluminum Black hardcoat anodized finish Standard M-4 buffer tube, buttstock, and pistol grip Compatible with standard M-4/AR-15 furniture and trigger components Magazine included