The FAB Defense R10/22 M4 Collapsible Stock Conversion Kit is a tactical upgrade for the Ruger 10/22 that merges bench-rest ergonomics with modern tactical features. The chassis includes 1913 MIL-STD Picatinny side and lower rails for secure mounting of any picatinny-based accessories.
Installation is quick and straightforward with drop-in compatibility. The collapsible buttstock system offers 5 length options, while the side-folding buttstock (left-folding by default) enables compact carry and storage. Quick-Detach sling swivel sockets are positioned on both sides of the platform.
Design features include finger grooves and a backstrap shape optimized for trigger control, along with an ergonomic profile that reduces wrist fatigue and maintains a secure grip. The chassis is built from durable, lightweight fiberglass-reinforced polymer.
The R10/22 M4 is compatible with standard and bull-barreled Ruger 10/22 rifles and accepts all 1913 MIL-STD picatinny-based accessories.
