Stern Def. Barrel .45acp 4" - .578-28" 1:16 Melonite Ar-15 Boots Works by expanding inside a

Works by expanding inside a pre-drilled hole

Ambidextrous - Wearable Right or Left-hand

Rigid Vinyl Flex-Core Rub Rail 1

-Flows through lube sizers without heat

When the DVR is in standby mode

Stern Def. Barrel .45acp 4" - .578-28" 1:16 Melonite Ar-15 Boots Works by expanding inside aStern def. Barrel. 45acp 4". 578 28" 1: 16 melonite ar 15 FEATURES: Caliber: 45ACP Length: 4 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