Product Description
MCS AR-15 10.5" INCH PISTOL UPPER 1:8 5.56 NATO FREEFLOAT M-LOK HANDGUARD
The MCS 10.5" Pistol Upper Build Kit combines compact dimensions with proven materials for versatile AR-15 configurations. Built around a 10.5-inch 4150 Chrome Moly Vanadium barrel with phosphate finish, carbine-length gas system, and 1:8 twist rate, this kit provides reliable stabilization across a wide range of 5.56 NATO ammunition weights.
The 7075-T6 aluminum upper receiver features a durable anodized finish and M4 feed ramps for enhanced feeding reliability. A lightweight freefloat M-LOK handguard offers ample accessory mounting space without adding bulk, while the M4 barrel profile balances weight and rigidity. Threaded 1/2x28 TPI, the barrel includes a flash hider and accepts standard AR-15 muzzle devices for easy customization. Engineered for builders who demand modularity and dependable performance, this upper kit adapts seamlessly to pistol builds, home defense setups, and compact tactical configurations.
Caliber: 5.56x45mm NATO
Barrel Material: 4150 Chrome Moly Vanadium
Barrel Length: 10.5 inches
Barrel Thread Pitch: 1/2x28
Barrel Finish: Phosphate
Barrel Profile: M4
Barrel Twist Rate: 1:8
Barrel Gas System Length: Carbine
Upper Receiver Material: 7075-T6 Aluminum
Upper Receiver Finish: Anodized
Upper Receiver: AR-15 Upper Receiver with M4 Feed Ramps
Handguard Style: Free Float M-LOK
Handguard Color: Black
Gas Block Size: 0.750
Gas Block: Micro Low-Profile Gas Block
Muzzle Device Details: AR-15 1/2x28 TPI GI Birdcage Flash Hider 5.56 .223 A2
Muzzle Device: Flash Hider
Muzzle Thread Pitch: 1/2x28
