Product Description
MCS AR-15 4.5" INCH .300 BLACKOUT PISTOL UPPER 1:7 M-LOK HANDGUARD
The MCS Complete Upper is built around a 4.5-inch .300 AAC Blackout HBAR barrel with a micro-length gas system, a 7000 Series optimized upper receiver, a 4-inch K-style free-float M-LOK handguard, and a complete bolt carrier group and charging handle.
Platform: AR-15
Caliber: .300 AAC Blackout
Barrel Manufacturer: MCS
Barrel Length: 4.5"
Barrel Profile: HBAR / Heavy Barrel
Barrel Material: 4150 Chrome Moly Vanadium Steel
Barrel Finish: Parkerized
Twist Rate: 1:7
Gas System Length: Micro Length
Gas Journal Diameter: .750"
Muzzle Thread: 5/8x24
Upper Receiver: 7000 Series Optimized AR-15 Upper Receiver
Upper Receiver Finish: Type III Hardcoat Anodized Black
Upper Receiver Feature: Integrated Dust Cover Pin Feature
Handguard Length: 4"
Handguard Style: Ultra-Lightweight Minimalist K-Style
Handguard Mounting System: M-LOK Compatible
Anti-Rotation Tabs: No
Gas Block: Micro Low-Profile Steel Gas Block
Gas Block Diameter: .750"
Gas Tube: Micro-Length Gas Tube
Gas Tube Length: 5.25"
Muzzle Device: Steel Flash Can Design 4
Muzzle Device Thread: 5/8x24
Muzzle Device Finish: Black Oxide
Muzzle Device Compatibility: 9mm and .350 Diameter Compatible
Crush Washer: 5/8" Black Crush Washer
Ejection Port Door: AR-15 .223 / 5.56 Ejection Port Door Assembly
Ejection Port Door Components: Door, Rod, and Spring
Bolt Carrier Group: Complete AR-15 Bolt Carrier Group
BCG Compatibility: 5.56 NATO, .223 Remington, .300 Blackout, and .350 Legend
BCG Origin: Made in the USA
Charging Handle: AR-15 M4-Style Charging Handle
Charging Handle Specification: Mil-Spec Quality
