The Ruger PC Carbine Dead blow action features a custom tungsten dead blow weight that shortens bolt travel and reduces felt recoil and muzzle rise. The bolt is machined from heat treated"" chrome-moly steel to ensure strength"" structural integrity and durability. The PC Backpacker is constructed with Magpul's advanced polymer"" featuring an ergonomic hand guard with M-LOK slots at the 3 & 9 o'clock positions and interchangeable cheek risers to accommodate for various sighting options. The PC Backpacker stock also features an MOE SL rubber butt-pad offering an anti-slip surface that increases impact protection and is compatible with the MOE SL Enhanced Rubber Butt-Pad for an additional 3/8"" LOP. Using a unique locking interface that attaches the barrel assembly to the receiver"" the PC Backpacker provides an efficient solution for storage during transportation while maintaining convenient assembly from the stowed position.