Description
Product Details
Details
Brand: Palmetto State Armory
Model: LSA Grunt Complete Upper
Platform: AR-15
Caliber: 5.56 NATO
Barrel Length: 16"
Gas Block Diameter: .750"
Gas Block Type: Low Profile
Gas System: Mid-Length / Direct Impingement
Barrel Extension: M4 Profile
Twist Rate: 1:7
Muzzle Thread: 1/2 x 28
Muzzle Device: Linear Comp
Receiver Material: 7075-T6 Aluminum
Receiver Finish: Hardcoat Anodized
Handguard: 17" LSA Grunt Free Floating Rail
Handguard Finish: Sniper Green
Attachment Style: M-LOK
Bolt Carrier Group: NO
Charging Handle: NO
Features
Barrel: The 16-inch barrel is chambered in 5.56 NATO and features a 1:7 twist rate for effective stabilization across a broad range of projectile weights. A mid-length gas system provides reliable cycling and a balanced recoil impulse. The barrel is treated with a nitride finish to enhance corrosion resistance, surface hardness, and long-term durability. A linear compensator directs muzzle blast and gases forward.
Upper: The upper receiver is forged from 7075-T6 aluminum and machined to mil-spec dimensions for proper fit and function. A hardcoat anodized finish enhances wear resistance, while the flat-top configuration allows for optic or backup sight installation. M4 feed ramps promote reliable feeding. The assembly is equipped with a 17-inch Lead Star Arms Grunt Hex lightweight free-float M-LOK handguard, providing a slim profile, reduced weight, extensive accessory mounting capability, and effective heat dissipation. The Hex configuration provides a distinctive lightweight design while maintaining versatile M-LOK accessory mounting.
Bolt: Bolt carrier group and charging handle are not included.
