The Fab Defense M4 Ruger 10/22 Collapsible Stock Conversion Kit in black is the ultimate tactical upgrade for your Ruger 10/22 rifle. Combining a classic bench-rest design with modern tactical functionality this kit offers unmatched versatility. Its collapsible buttstock features five length options and a side-folding mechanism for compact storage and carry. The 1913 mil-std Picatinny side and lower rails allow secure mounting of your favorite accessories while the ergonomic pistol grip with finger grooves ensures a comfortable and secure hold. Made from durable and lightweight fiberglass-reinforced polymer this stock is built to last. Compatible with both standard and bull-barreled Ruger 10/22 rifles it delivers a quick and easy drop-in installation for enhanced performance.