Moriarti MA-9 9MM 4.5″ Brindle Micro ARP Pistol – LRBHO | SBA3

ARP-9mm

Moriarti MA-9 9MM 4.5″ Brindle Micro ARP Pistol – LRBHO | SBA3

The Moriarti MA-9 9MM 4.5″ Brindle Micro ARP Pistol combines a compact AR-9 platform with LRBHO functionality, Glock-pattern magazine compatibility and a custom multi-tone Cerakote finish.

Built around a 4.5″ heavy-profile 9MM barrel, this blowback-operated pistol features a slick-side billet LRBHO upper receiver, MA-9 billet Glock-style lower, 4″ free-float M-LOK handguard and SBA3 adjustable pistol brace.

Custom Brindle Cerakote Finish: Five components receive a custom three-color Cerakote treatment combining FDE, Coyote Tan and Bronze. Each firearm is individually finished, so color placement, shades, transitions and patterns will naturally vary.

Key Features

• 4.5″ 9MM Barrel: Heavy-profile 4150 CMV barrel with nitride finish.
• 1:10 Twist Rate
• 1/2x36 Muzzle Thread
• Slim Flash Can: Compact muzzle device included.
• LRBHO: Last Round Bolt Hold Open functionality.
• Slick-Side Billet Upper: Clean receiver profile without forward assist or dust cover.
• MA-9 Billet Lower: Glock-style lower receiver designed for compatible 9MM Glock-pattern magazines.
• Blowback Operation: Dedicated 9MM pistol-caliber operating system.
• Hybrid 9MM Bolt: 8620 steel blowback bolt system.
• 4″ Free-Float M-LOK Handguard: Compact rail with custom Cerakote finish.
• SBA3 Adjustable Pistol Brace
• Heavy Blowback Buffer System
• Custom Brindle Cerakote: Multi-tone custom finish with natural variations between firearms.
• One Glock-Pattern 9MM Magazine Included
• Sights and Optics Not Included

Specifications

Package Includes

• Moriarti MA-9 4.5″ Brindle complete pistol
• 4.5″ heavy-profile nitride 9MM barrel
• Slim flash can
• Slick-side billet LRBHO upper receiver
• MA-9 Glock-style billet lower receiver
• 4″ free-float M-LOK handguard
• Hybrid 9MM blowback bolt
• Heavy blowback buffer system
• SBA3 adjustable pistol brace
• One Glock-pattern 9MM magazine

Sights and optics are NOT included.

FAQ

What does LRBHO mean on the Moriarti MA-9 Brindle?

LRBHO stands for Last Round Bolt Hold Open. The MA-9 Brindle incorporates LRBHO functionality designed to hold the bolt open after the final round. Not every AR-9 configuration provides LRBHO, making this an important distinction from Moriarti's Non-LRBHO MA-9 configurations.

Product Image Notice

Images may not be the exact representation of the product. This firearm features a custom Brindle Cerakote application using FDE, Coyote Tan and Bronze across five components. Because each firearm is individually finished, color shades, placement, transitions and patterns will vary from the firearm pictured. Component appearance may also vary based on production and availability.

FFL Transfer

This firearm must be shipped to a licensed FFL dealer for transfer. Please have your receiving FFL email a signed copy of its license to [email protected] and reference your invoice number.