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DoubleStar 16" DS-4 Flat-Top Upper 1x9 twist

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DoubleStar 16" DS-4 Flattop Upper, 1x9 twist, with M-4 Feed Ramps

Chrome moly 19 twist DS-4 barrel is mounted on aircraft-quality aluminum flattop upper. Barrels are plated evenly with tough parkerized finish. Fully assembled (minus bolt/carrier and charging handle) with forward assist, ejection port cover assembly, gas tube assembly and heat shielded handguards.

Features and Specifications:
Manufacturer Number: ARBU404

Barrel Length: 16"
Twist: 1:9
Barrel Type: DS-4 Barrel
Barrel Material: Mil-B-11595E Barrel Steel
Barrel Finish: Magnesium Phosphate
Barrel Extension and Pin: Included
Gas Hole Drilled: Yes
M4 Feed Ramp: Yes
Upper Receiver: DoubleStar Flattop Upper Receiver
Handguard: DoubleStar DS-4 Handguard / Black
Muzzle Device: DoubleStar A2 Flash Hider
Gas Block: No
Sights: "F" Marked Front Sight Base

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