Description
O-ring for .40 caliber barrels
Features:
- Original green color no longer in production
- Same high-temperature rubber as the newer black O-rings
- Factory part that provides the seal between the slide and the barrel
- Provides a secure lockup and increased accuracy.
Compatible With:
- HK USP Tactical .40 barrel
- HK Elite, Expert, and other custom aftermarket .40 tactical style barrels.
