KAC-Knight's Armament SR-25 Gas Block Roll Pin (20173)
The Knight's Armament SR25 gas block coiled spring pin (roll pin) is used in SR25 gas blocks utilizing a locating pin on the top edge of the barrel, below the gas tube. These are replacements and can be used with the M110 double high gas blocks.
- Diameter: 5/32"
- Length: 3/4"
- Material: Alloy Steel
- Finish: Black Oxide