Product Description
MCS AR-9 5" INCH PISTOL UPPER 1:10 9MM FREEFLOAT M-LOK HANDGUARD
The MCS 5-Inch 9mm AR-9 Complete Upper delivers precision and reliability engineered for compact pistol-caliber platforms. Built around a BC-9 5-inch PCC barrel with 1:10 twist rate constructed from 4150 CrMoV steel with slim profile and phosphate finish, this upper is chambered in 9mm (9x19). The 6061-T6 billet aluminum upper receiver features Type III hardcoat anodizing for improved durability.
A 4-inch M-Lok freefloat handguard with full-length top Picatinny rail offers versatile accessory mounting and enhanced heat dissipation. The upper utilizes direct blowback operation and includes a 9mm nitride bolt carrier group compatible with Glock and Colt magazines, 9mm A2 birdcage flash hider, and AR-15 Mil-Spec charging handle.
Caliber: 9mm (9x19)
Barrel: MCS BC-9 5" PCC Barrel, 1:10 Twist, Parkerized, Slim Profile, Direct Blowback, 1/2x36
Barrel Material: 4150 CrMoV
Barrel Length: 5-inch
Barrel Thread Pitch: 1/2x36
Barrel Finish: Phosphate
Barrel Profile: Slim Profile
Barrel Twist Rate: 1:10
Barrel Gas System: Direct Blowback
Upper Receiver: MCS AR-15 Billet Upper Receiver for Pistol Calibers
Upper Receiver Material: 6061-T6 Billet Aluminum
Upper Receiver Finish: Type III Hardcoat Anodized
Handguard Style: MCS 4" M-LOK Freefloat Handguard – Full Top Picatinny, QD Mounts
Bolt Carrier: 9MM Nitride Bolt Carrier Group 8620 Alloy Steel – Compatible with Glock and Colt Magazines (External Extractor)
Bolt Carrier Material: 8620 Alloy Steel
Bolt Carrier Finish: Nitride
Bolt Carrier: AR-9
Muzzle Device: 9mm Flash Hider A2 Bird Cage 1/2-36
Muzzle Thread Pitch: 1/2x36
Charging Handle: AR-15 Mil-Spec Charging Handle
