Geissele 08-543B Super Duty MOD1 5.56 NATO 10.3" 1:7" CHF Chrome Lined Bbl Black Complete Upper Receiver Group

The Geissele Super Duty MOD1 5.56 NATO 10.3" Complete Upper Receiver Group 08-543B features a 10.3-inch barrel with a 1:7" twist rate, cold hammer forged (CHF), and chrome-lined for durability and reliability. This Geissele 08-543B complete upper receiver group comes in black and is designed to provide top-notch performance for AR builds.