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FAQ

BM-9/AR-9 Upper Build Kit Specifications

The Brigade BM9 8.5 AR9 Pistol Build Kit is engineered for builders who want full control over their firearm setup while maintaining premium performance. The most Versatile AR9 PCC (Pistol Caliber Carbine) upper in the BM-9 series. The ramped barrel is designed to feed most modern defense ammunition which resolves a problem most AR9’s in the industry face. Built on a direct-blowback design, it delivers reliable performance, accurate pistol-caliber ballistics, and smooth handling in a streamlined profile.

This complete upper build kit is compatible with many AR9 direct-blowback lowers (verify fitment before use) and accepts both M-LOK and Keymod accessories through the U-Lok system. Compact enough to fit in a backpack or small range bag, the BM-9 upper is ideal for PCC builds focused on close-quarters battle (CQB), home defense, and urban tactical applications.

Materials

  • Receiver: 7075-T6 Aluminum Forging (MILSPEC)
  • Barrel: 416R Stainless Steel

Features

  • Platform: AR-9
  • Finish: Cerakote
  • Rail: Free Float U-LOK (Universal rail system, accepts M-LOK and Keymod accesories)
  • Rail Length: 7 inch
  • Barrel Length: 8.5 inch
  • Barrel Twist: 1:10
  • Barrel Extension: Ramped (Feeds defense ammos such as Hollow Point and Flat Point bullets)
  • Barrel Thread: 1/2x36
  • Muzzle Device: Brigade MFG, Mini can 
  • Bolt Carrier Group: Direct blowback, 9mm AR-9 

Operating System

  • Direct Blowback System

Made in USA!

Completed upper in 9mm 7.5" Barrel SBA3 Tactical Brace 7" Rail With Mini Can and Lower Parts Kit -Cerakote FDE

Completed upper in 9mm 7.5" Barrel SBA3 Tactical Brace 7" Rail With Mini Can and Lower Parts Kit -Cerakote FDE

Completed upper in 9mm 7.5" Barrel SBA3 Tactical Brace 7" Rail With Mini Can and Lower Parts Kit -Cerakote Armor Black

$485.00
Availability: In stock
SKU
K0917512

Completed upper in 9mm 8.5" Barrel SBA3 Tactical Brace 7" Rail With Mini Can and Lower Parts Kit 

Material  Uppers are CNC Machined from 7075-T6 Aluminum Forging
Barrel Length 8.5in 
Twist rate 1:10
Rail Length BM U-Rail 7" Rail
Diameter of the Handrail 1.35in 
Threading ½ x 36
Lower Parts Kit

Mil-Spec trigger

Trigger spring

Mil-Spec Hammer

Hammer Spring

Safety selector

Polymer trigger guard (screw & roll pin)

Bolt catch (plunger, spring & roll pin)

Disconnector

Disconnector spring

Buffer tube detent plunger

Retainer spring

Take down pins

Hammer pins

Carbine Buffer Spring

7.2 Solid Steel Construction Buffer; 4” Length

Mil-Spec 6 Position 7075-T6 Buffer Tube - Black

Castle Nut - Black

Mil-Spec End Plate - Black

SBA3 Pistol Stabilizing Braces

A2 pistol Grip

grip screw

grip washer

detent pin

detent spring

Weight 4.76 lb
Weapon system Semi-Auto and Direct Blow Back System
Color Cerakote Finish Armor Black, FDE, Tungsten, and Midnight Bronze
Shipping to FFL Dealer Required No
Made In America? Yes
Platform AR9

Made in USA!

**No Sights Included**

More Information
BM-Twist Rate 1:10 TWIST
BM-Color Cerakote Armor Black
BM-Caliber 9mm
BM-Barrel 7.5"
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