Product Description
MCS AR-9 5" INCH PISTOL BUILD KIT 1:10 9MM FREEFLOAT M-LOK HANDGUARD W/SBA3 BRACE
The MCS IX w/SBA3 Brace 5-inch AR-9 Pistol Full Build Kit delivers a complete, ready-to-assemble 9MM pistol platform with premium components and the legendary SB Tactical SBA3 adjustable brace.
Featuring a 5-inch 4150 CrMoV steel barrel with 1:10 twist rate and phosphate finish, 6061-T6 billet aluminum upper receiver with Type III hardcoat anodizing, 7-inch M-LOK freefloat handguard with full-length top Picatinny rail, 9MM Nitride BCG made from 8620 alloy steel, and integrated QD mounts—perfect for AR-9 pistol builds, PCC competition, home defense, and shooters seeking a compact, reliable 9MM AR platform with adjustable length of pull and enhanced stability.
Caliber: 9mm (9x19)
Barrel Length: 5-inch
Barrel Material: 4150 CrMoV
Barrel Finish: Phosphate
Barrel Twist Rate: 1:10
Barrel Profile: Slim Profile
Thread Pitch: 1/2x36
Barrel Gas System Length: 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 Material: Aluminum
Handguard Color: Black
Handguard Style: M-Lok
Handguard Length: 7-inch
Handguard Features: Full Top Picatinny, Integrated QD Mounts
Bolt Carrier Material: 8620 Alloy Steel
Bolt Carrier Finish: Nitride
Bolt Carrier: 9MM Nitride Bolt Carrier Group 8620 Alloy Steel
Charging Handle: AR-15 M4 Charging Handle Mil-Spec Quality
Muzzle Device: 9mm Flash Can
Muzzle Thread Pitch: 1/2x36
Buffer Tube: Mil-Spec Heavy-Duty AR-15 6-Position Buffer Tube
Buffer Weight: 5.5 oz
Pistol Brace Information: SB Tactical SBA3 Adjustable Pistol Stabilizing Brace
Pistol Brace Material: Polymer
Pistol Brace Color: Black
