FSI Heavy Duty Pistol Buffer Tube with Foam Pad
This buffer tube features specially engineered lips on the threaded portion of the tube.
This causes the buffer detent button to double as a locking mechanism preventing the buffer tube from rotating, tilting, or coming loose under extreme operating conditions.
This prevents unnecessary wear caused by the cycling of the action.
Smooth and non-adjustable. Compatible with all types of pistol braces.