Product Description
MCS AR-9 9MM 5 INCH AR PISTOL BUILD KIT FREEFLOAT M-LOK HANDGUARD FIN PISTOL BRACE
The MCS 9mm AR-9 Full Build Kit is built around a compact 5-inch direct blowback platform. The kit centers on a 5-inch slim profile parkerized steel barrel with a 1:10 twist rate and 1/2x36 thread pitch, paired with a black 9mm A2 birdcage flash hider and a black 1/2-inch crush washer. The 7075-T6 aluminum anodized black upper receiver features M4 feed ramps, an ejection port door with rod and spring, and a forward assist assembly, paired with a 4.2-inch freefloat M-LOK handguard in 7075-T6 aluminum with a black finish and an integrated hand stop. A complete 9mm nitride bolt carrier group in 8620 alloy steel with an external extractor compatible with Glock and Colt pattern magazines, and a Mil-Spec AR-15 M4 charging handle complete the upper side. The lower hardware includes a complete Mil-Spec AR-15 lower parts kit, a heavy-duty AR pistol buffer tube, an AR-15 9mm carbine buffer, a USA-made standard AR-15 carbine recoil spring, a Mil-Spec M16 style receiver end plate, and an AR-15 carbine castle nut. The MCS polymer stabilizing brace in black is included.
Caliber: 9mm (9x19)
Platform: AR-9 Pistol Caliber Carbine (PCC)
Barrel Length: 5"
Barrel Material: Steel
Barrel Finish: Parkerized
Barrel Profile: Slim Profile
Twist Rate: 1:10
Operating System: Direct Blowback
Thread Pattern: 1/2x36
Muzzle Device: A2 Birdcage Flash Hider
Flash Hider Caliber: 9mm
Crush Washer Included: Yes
Crush Washer Size: 1/2"
Crush Washer Finish: Black
Handguard Length: 4.2"
Handguard Type: Free Float
Handguard Attachment System: M-LOK
Handguard Material: 7075-T6 Aluminum
Handguard Features: Integrated Hand Stop
Handguard Finish: Black
Upper Receiver Type: AR-15 Upper Receiver
Upper Receiver Material: 7075-T6 Aluminum
Upper Receiver Finish: Anodized Black
Feed Ramp Style: M4 Feed Ramps
Ejection Port Cover: Included
Ejection Port Components: Door, Rod, and Spring
Forward Assist: Included
Bolt Carrier Group: 9mm Nitride BCG
BCG Material: 8620 Alloy Steel
BCG Compatibility: Glock and Colt Pattern Magazines
Extractor Type: External Extractor
Charging Handle: AR-15 M4 Mil-Spec Charging Handle
Lower Parts Kit: Complete Mil-Spec AR-15 Lower Parts Kit
Buffer Tube Type: Heavy-Duty AR Pistol Buffer Tube
Buffer: AR-15 9mm Carbine Buffer
Receiver End Plate: Mil-Spec M16 Style
Castle Nut: AR-15 Carbine Castle Nut
Recoil Spring: Standard AR-15 Carbine Recoil Spring
Recoil Spring Origin: Made in the USA
Brace Type: Polymer Stabilizing Brace
Brace Color: Black
Top Rail: Full-Length Picatinny Rail
Optics Ready: Yes
Color: Black
