Other FEATURES:: Threaded .578-28, 1:16 Twist, 4150 Chrome-Molly Steel, MELONITE Coating Other FEATURES2:: This Must Be Used With A 11 Ounce Buffer Or HEAVIER When USING A Carbine Spring, .45ACP UPPERS Require An ENLARGED Ejection Port
Manufacturer: Stern Defense
Model No: 850001176446
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