Product Description
MCS AR-9 5-INCH PISTOL UPPER 1:10 9MM FREEFLOAT M-LOK HANDGUARD
The MCS 9mm AR-9 Upper Build Kit 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. The upper receiver top rail provides a full-length Picatinny surface for optics and accessory mounting.
Caliber: 9mm (9x19)
Platform: AR-9 PCC Upper Assembly
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
Optics Ready: Yes
Top Rail: Full-Length Picatinny Rail
Color: Black
