THIS KIT MUST BE USED WITH A 11 OUNCE BUFFER OR HEAVIER WHEN USING A CARBINE SPRING. CLICK HERE FOR BUFFER

45ACP UPPERS MUST HAVE AN ENLARGED EJECTION PORT.
CLICK HERE FOR UPPER

Stern 45ACP barrels are ideal for gun lovers who want to build their own custom dedicated 45ACP AR15 upper group. Machined to tight tolerances with quality as a top priority, you can’t go wrong with the SD 45ACP barrel.

Note: Barrel comes with locating pin installed.

Information:

• Barrel length is measured in overall length from breech to muzzle.
• Caliber: 45ACP.
• Length: 4 Inches.
• Made in the U.S.A.
• Threaded .578-28.
• 1:16 TWIST.
• 4150 Chrome-moly steel.
• Melonite coating.