It's the groves on the barrel where a barrel extension may be added to the gun. Barrel extensions include flash-hiders & mock silencers.
yes zero one sells an m9 barrel thread that can attach a silencer
Oxidation of the steel of a gun barrel.
Thread count is a textile term. however The pro carbine has A5 barrel threads.
Flower in the Gun Barrel was created in 2008.
The gun barrel is the metal part that the bullet comes out of.
The threads are Tippmann Barrel Threads
What is the thread size for a Winchester Model 90?
A barrel is part of a gun
M18x1
Barrel of a Gun - Guster song - was created in 1998.
You will have to replace the barrel