Silverback Stainless Steel/POM Spring Guide w/ Thrust Bearing for HTI .50 BMG Rifle

Silverback Stainless Steel/POM Spring Guide w/ Thrust Bearing for HTI .50 BMG Rifle Stainless Steel Construction The spring guide comes with the thrust bearings for FPS stability and fine adjustment. Suitable For Silverback Desert Tech HTI .50 BMG Rifle