Stern def.Barrel.45acp 6".578-28" 1:16 melonite ar-15
FEATURES:
Caliber: 45ACP
Length: 6 Inches
Threaded .578-28
Twist: 1:16
4150 Chrome-moly steel
Melonite coating
Made in the U.S.A
Other Features: Threaded.578-28, 1:16 twist, 4150 chrome-molly steel, melonite coating this must be used with a 11 ounce buffer or heavier when using a carbine spring,.45acp uppers require an enlarged ejection port
