The Aegis 4.5-inch 1:10 9MM AR-9 Freefloat M-Lok Handguard Pistol Upper Build Kit offers a robust solution for AR-9 builds. Constructed from durable 4150 CrMoV steel, the 4.5-inch barrel features a nitride finish for corrosion resistance and extends a medium profile with a 1:10 twist rate, ensuring optimal performance for 9mm ammunition.
Included in the kit is the KAK Industry Plan B Universal Muzzle Device, made from 17-4 stainless steel and finished with nitride for additional durability. The freefloat M-Lok handguard, constructed from lightweight 6061-T6 aluminum, allows for flexible accessory attachment while maintaining a sleek black profile. The upper receiver is built from 7075 T6 aluminum with an anodized finish, ensuring strength and reliability for any gunsmith looking to build a functional and versatile AR-9 upper.
Caliber: 9mm (9x19)
Barrel Length: 4.5-inch
Barrel Material: 4150 CrMoV
Barrel Thread Pitch: 1/2x36
Barrel Finish: Nitride
Barrel Profile: Medium
Barrel Twist Rate: 1:10
Muzzle Device: KAK Industry Plan B Universal Muzzle Device
Muzzle Device Material: 17-4 Stainless Steel
Muzzle Device Finish: Nitride
Handguard Material: 6061-T6 Aluminum
Handguard Color: Black
Handguard Style: M-Lok Freefloat
Upper Receiver Material: 7075 T6 Aluminum
Upper Receiver Finish: Anodized
To view the most up-to-date shipping times Click HERE. To view Warranty, Returns, Terms & Restrictions Click HERE.
