Faxon 14.5" 556 NATO Gunner Barrel w/ Pinned Gas Block - Arm or Ally
WaGuns.org • View topic - S&W Pistol / Revolver Model Info Thread
Daniel Defense DD new 14.5" M4A1 carbine barrel kit, pinned - Charlie's Custom Clones
Smith & Wesson K Frame Model 1905 4th Change 4.9" Pinned Barrel .38 Special Used – USA Guns And Gear-Your Favorite Gun Parts Store
Ballistic Advantage, Performance Series, 556NATO, 13.7" Barrel, Black Finish, Pinned Lo-Pro Gas Block, Carbine Length Gas System, Fits AR15 - Aerospace Arms
Criterion Barrels, Inc. - To pin or not to pin: Pinning the gas block negatively effects barrel harmonics and can result in a tight spot in the bore. When pinning the gas