Ok, if they broke then they can break.
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Ok, if they broke then they can break.
I had one many years ago before I knew better than to intentionally insert foreign debris into my guns.
After three weeks, the rubber compressed to the point where it was no longer keeping any tension on the upper.
It also began to crumble not long after, and I found bits of red rubber inside my bolt carrier, trigger assy and receiver extension.
Stay away.
You can use some Epoxy in the right spot.
My thought I would Not use it in my rifle
Epoxy will eventually break down & crumble from solvents, vibration & shock
Better solution. Apply O-ring to front lower receiver take-down post area. Lower-upper play eliminated, without fouling FCG or generally making your rifle useless.