Details
The IX w/Magpul BTR Brace 7.5-inch Carbine-Gas 1:10 9MM AR-9 is a comprehensive full build kit optimized for performance and reliability. Chambered in 9mm, it features a robust 7.5-inch barrel constructed from 4150 CrMoV steel with a phosphate finish and an HBAR profile, boasting a 1:10 twist rate and a 1/2×36 thread pitch. The freefloat M-Lok handguard, made from durable 6061-T6 aluminum, incorporates a full top Picatinny rail for accessory versatility.
The assembled upper receiver is a precision-engineered AR-15 billet designed specifically for pistol caliber functionality. Utilizing a 9MM nitride bolt carrier group, this kit ensures smooth operation in the field. The kit includes a Magpul BTR Pistol Brace, crafted from polymer and finished in black, providing stability and ease of handling. Ideal for gunsmiths, this AR-9 build kit is a solid choice for those looking to assemble a reliable firearm.
Specifications
Caliber: 9mm (9×19)
Barrel Length: 7.5-inch
Barrel Material: 4150 CrMoV
Barrel Finish: Phosphate
Barrel Profile: HBAR
Barrel Twist Rate: 1:10
Barrel Thread Pitch: 1/2×36
Handguard Material: 6061-T6 Aluminum
Handguard Color: Black
Handguard Style: 7" M-LOK Freefloat with Full Top Picatinny Rail
Upper Receiver Name: AR-15 Billet Pistol Caliber Upper Receiver
Muzzle Device Details: 9mm Flash Hider A2 Bird Cage
Muzzle Thread Pitch: 1/2×36
Bolt Carrier Name: 9MM Nitride Bolt Carrier Group
Bolt Carrier Material: 8620 Alloy Steel
Bolt Carrier Finish: Nitride
Pistol Brace Name: Magpul BTR Pistol Brace
Pistol Brace Color: Black
Pistol Brace Material: Polymer
To view the most up-to-date shipping times Click HERE. To view Warranty, Returns, Terms & Restrictions Click HERE.








Reviews
There are no reviews yet.