Mars Trigger 1022 Folding Stock Black Silver. Quick-fold mechanism with secure locking system provides compact storage and transport while maintaining shooting stability when deployed. Specifications for Mars Trigger Folding Stock: Manufacturer: Mars Trigger Gun Make: Ruger Gun Model: Ruger 10/22 Length: 20 in Weight: 2 lb Stock/Brace Material: 6061-T6 Aluminum Features of Mars Trigger Folding Stock Quick-fold mechanism Secure locking system Lightweight yet durable Enhanced portability Robust construction Package Contents: Mars Trigger Folding Stock What firearm models does the manufacturer say Mars Trigger Folding Stock is compatible with? The manufacturer says that Mars Trigger Folding Stock is compatible with Ruger 10/22Mars Trigger A003-ASM-001-V01: 1022 Folding Stock Black Silver