The Light Slinger 18-inch Rifle-Gas 1:7 5.56 NATO AR-15 Freefloat M-Lok Handguard Rifle Upper Build Kit delivers exceptional performance for the discerning gunsmith. This upper assembly features an 18-inch barrel made from durable 4140 gun steel, with a nitride finish for enhanced longevity. The 1:7 twist rate optimizes stability for a wide range of bullet weights. The rifle-length gas system, combined with a micro low-profile gas block, ensures reliable cycling.
The upper receiver is constructed from 7075 T6 aluminum, anodized for corrosion resistance and equipped with M4 feed ramps. Complementing this is a free-float 15-inch handguard made of lightweight 6061-T6 aluminum, finished with a Type III hard coat anodization and M-Lok compatibility for versatile attachment options. The kit includes an A2 birdcage flash hider and is fully compatible with standard AR-15 lowers, making it an ideal choice for those seeking a customized shooting experience.
Caliber: 5.56x45mm NATO
Barrel Length: 18-inch
Barrel Twist Rate: 1:7
Barrel Material: 4140 Gun Steel
Barrel Finish: Nitride
Barrel Profile: Government
Barrel Thread Pitch: 1/2x28
Barrel Gas System Length: Rifle
Gas Block: Micro Low-Profile Gas Block for .750 O.D Barrel Steel
Gas Block Size: 0.750
Gas Block Finish: Phosphate
Muzzle Device: AR-15 1/2x28 TPI GI Birdcage Flash Hider A2
Upper Receiver: Upper Receiver with M4 Feed ramps - 7075 T6 Aluminum, Anodized
Upper Receiver Material: 7075 T6 Aluminum
Upper Receiver Finish: Anodized
Handguard Material: 6061-T6 Aluminum
Handguard Style: Free-float, M-LOK compatible
Handguard Color: Black
Handguard Length: 15-inch
Handguard Finish: Type III Hard Coat Anodized
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