Echo LOP Spacer Set & Thumbscrew: This is a kit for those who want to upgrade their Echo with length-of-pull (LOP) spacers and a Four Lobe Thumbscrew for tool-less cheekpiece adjustment. The Echo Chassis has a LOP of approximately 12.9″ with no spacers and just over 14″ with three installed. Each spacer is 3/8″ thick. All LOP hardware is included.

Fits: Echo, Bravo and X-Ray Chassis (Ships standard on all current Bravo and X-Ray Chassis)

Material: Reinforced polymer

Made by KRG