This is not a lockback. Model C4s slipjoint, New Zealand Red Stag Backside This has a good strong spring.
	Item # Blade Length Closed Length Steel Rockwell Hardness Blade Finish Bolster, liners, pins Handle Material Price	fc350 2.970" 3 3/4" S30V 58.5 Rc Hand-rubbed satin Nickel Silver New Zealand Red Stag $325. FREE SHIPPING